Maeda, Hideki, Harada, Tomohiro, Carr, B. J.
Motivated by the cosmological wormhole solutions obtained from our recent numerical investigations, we provide a definition of a wormhole which applies to dynamical situations. Our numerical...
Do Evaporating Black Holes Form Photospheres? (2007)
MacGibbon, Jane H., Carr, B. J., Page, Don N.
Several authors, most notably Heckler, have claimed that the observable Hawking emission from a microscopic black hole is significantly modified by the formation of a photosphere around the black...
Bremsstrahlung Effects around Evaporating Black Holes (2007)
Page, Don N., Carr, B. J., MacGibbon, Jane H.
We discuss a variety of bremsstrahlung processes associated with charged particles emitted by evaporating black holes. We show that such particles produce a negligible number of bremsstrahlung...
Self-similar cosmological solutions with dark energy. I: formulation and asymptotic analysis (2007)
Harada, Tomohiro, Maeda, Hideki, Carr, B. J.
Based on the asymptotic analysis of ordinary differential equations, we classify all spherically symmetric self-similar solutions to the Einstein equations which are asymptotically Friedmann at large...
Maeda, Hideki, Harada, Tomohiro, Carr, B. J.
We use a combination of numerical and analytical methods, exploiting the equations derived in a preceding paper, to classify all spherically symmetric self-similar solutions which are asymptotically...
A Short-Timescale Candidate Microlensing Event in the POINT-AGAPE Pixel Lensing Survey of M31 (2007)
Auriere, M., Baillon, P., Bouquet, A., Carr, B.J., Creze, M., Evans, N.W., ...
The POINT-AGAPE survey: 4 high signal-to-noise microlensing candidates detected towards M31 (2007)
Paulin-Henriksson, S., Baillon, P., Bouquet, A., Carr, B.J., Creze, M., Evans, N.W., ...
We have carried out a survey of the Andromeda galaxy for unresolved microlensing (pixel lensing). We present a subset of four short timescale, high signal-to-noise microlensing candidates found by...
The POINT-AGAPE survey: 4 high signal-to-noise microlensing candidates detected towards M31 (2007)
Paulin-Henriksson, S., Baillon, P., Bouquet, A., Carr, B.J., Creze, M., Evans, N.W., ...
We have carried out a survey of the Andromeda galaxy for unresolved microlensing (pixel lensing). We present a subset of four short timescale, high signal-to-noise microlensing candidates found by...
The POINT-AGAPE survey: 4 high signal-to-noise microlensing candidates detected towards M31 (2007)
Paulin-Henriksson, S., Baillon, P., Bouquet, A., Carr, B.J., Creze, M., Evans, N.W., ...
We have carried out a survey of the Andromeda galaxy for unresolved microlensing (pixel lensing). We present a subset of four short timescale, high signal-to-noise microlensing candidates found by...
POINT-AGAPE Pixel Lensing Survey of M31 : Evidence for a MACHO contribution to Galactic Halos (2006)
Calchi Novati, S., Paulin-Henriksson, S., An, J., Baillon, P., Belokurov, V., Carr, B.J., ...
The POINT-AGAPE collaboration is carrying out a search for gravitational microlensing toward M31 to reveal galactic dark matter in the form of MACHOs (Massive Astrophysical Compact Halo Objects) in...
POINT-AGAPE Pixel Lensing Survey of M31 : Evidence for a MACHO contribution to Galactic Halos (2006)
Calchi Novati, S., Paulin-Henriksson, S., An, J., Baillon, P., Belokurov, V., Carr, B.J., ...
The POINT-AGAPE collaboration is carrying out a search for gravitational microlensing toward M31 to reveal galactic dark matter in the form of MACHOs (Massive Astrophysical Compact Halo Objects) in...
POINT-AGAPE Pixel Lensing Survey of M31 : Evidence for a MACHO contribution to Galactic Halos (2006)
Calchi Novati, S., Paulin-Henriksson, S., An, J., Baillon, P., Belokurov, V., Carr, B.J., ...
The POINT-AGAPE collaboration is carrying out a search for gravitational microlensing toward M31 to reveal galactic dark matter in the form of MACHOs (Massive Astrophysical Compact Halo Objects) in...
Classical novae from the POINT-AGAPE microlensing survey of M31 -- I. The nova catalogue (2006)
Darnley, M.J., Bode, M.F., Kerins, E., Newsam, A.M., An, J., Baillon, P., ...
The POINT-AGAPE survey is an optical search for gravitational microlensing events towards the Andromeda Galaxy (M31). As well as microlensing, the survey is sensitive to many different classes of...
Darnley, M.J., Bode, M.F., Kerins, E., Newsam, A.M., An, J., Baillon, P., ...
We report the results of our statistical study of the POINT-AGAPE CNe catalogue. The first Sloan $r'$ and $i'$ analysis of the MMRD relationship in M31 is performed using the resulting POINT-AGAPE CN...
Harada, Tomohiro, Maeda, Hideki, Carr, B. J.
We consider the possible existence of self-similar solutions containing black holes in a Friedmann background with a stiff fluid or a scalar field. We carefully study the relationship between the...
Primordial Black Holes: Do They Exist and Are They Useful? (2005)
Recent developments in the study of primordial black holes (PBHs) are reviewed, with particular emphasis on their formation and evaporation. It is still not clear whether PBHs formed but, if they...
Darnley, M J, Bode, M F, Kerins, E, Newsam, A M, An, J, Baillon, Paul, ...
We report the results of our statistical study of the POINT-AGAPE CNe catalogue. The first Sloan $r'$ and $i'$ analysis of the MMRD relationship in M31 is performed using the resulting POINT-AGAPE CN...
Darnley, M. J., Bode, M. F., Kerins, E., Newsam, A. M., An, J., Baillon, P., ...
We report the results of our statistical study of the POINT-AGAPE CNe catalogue. The first Sloan $r'$ and $i'$ analysis of the MMRD relationship in M31 is performed using the resulting POINT-AGAPE CN...
The Similarity Hypothesis in General Relativity (2005)
Self-similar models are important in general relativity and other fundamental theories. In this paper we shall discuss the ``similarity hypothesis'', which asserts that under a variety of physical...
Super-horizon primordial black holes (2005)
We discuss a new class of solutions to the Einstein equations which describe a primordial black hole (PBH) in a flat Friedmann background. Such solutions arise if a Schwarzschild black hole is...
Automated Detection of Classical Novae with Neural Networks (2005)
Feeney, S, Belokurov, V, Evans, N W, An, J, Hewett, P C, Bode, M, ...
The POINT-AGAPE collaboration surveyed M31 with the primary goal of optical detection of microlensing events, yet its data catalogue is also a prime source of lightcurves of variable and transient...
Automated Detection of Classical Novae with Neural Networks (2005)
Feeney, S., Belokurov, V., Evans, N. W., An, J., Hewett, P. C., Bode, M., ...
The POINT-AGAPE collaboration surveyed M31 with the primary goal of optical detection of microlensing events, yet its data catalogue is also a prime source of lightcurves of variable and transient...
POINT-AGAPE Pixel Lensing Survey of M31: Evidence for a MACHO contribution to Galactic Halos (2005)
Novati, S C, Paulin-Henriksson, S, An, J, Baillon, Paul, Belokurov, V, Carr, B J, ...
The POINT-AGAPE collaboration is carrying out a search for gravitational microlensing toward M31 to reveal galactic dark matter in the form of MACHOs (Massive Astrophysical Compact Halo Objects) in...
POINT-AGAPE Pixel Lensing Survey of M31 : Evidence for a MACHO contribution to Galactic Halos (2005)
Novati, S. Calchi, Paulin-Henriksson, S., An, J., Baillon, P., Belokurov, V., Carr, B. J., ...
The POINT-AGAPE collaboration is carrying out a search for gravitational microlensing toward M31 to reveal galactic dark matter in the form of MACHOs (Massive Astrophysical Compact Halo Objects) in...
Primordial Black Holes - Recent Developments (2005)
Recent developments in the study of primordial black holes (PBHs) will be reviewed, with particular emphasis on their formation and evaporation. PBHs could provide a unique probe of the early...
The POINT-AGAPE survey II: An Unrestricted Search for Microlensing Events towards M31 (2005)
Belokurov, V., An, J., Evans, N.W., Hewett, P., Baillon, P., Calchi Novati, S., ...
An automated search is carried out for microlensing events using a catalogue of 44554 variable superpixel lightcurves derived from our three-year monitoring program of M31. Each step of our candidate...
The POINT-AGAPE survey II: An Unrestricted Search for Microlensing Events towards M31 (2005)
Belokurov, V, An, J, Evans, N W, Hewett, P C, Baillon, Paul, Novati, S C, ...
An automated search is carried out for microlensing events using a catalogue of 44554 variable superpixel lightcurves derived from our three-year monitoring program of M31. Each step of our candidate...
Darnley, M.J., Bode, M.F., Kerins, E., Newsam, A.M., An, J., Baillon, P., ...
We report the results of our statistical study of the POINT-AGAPE CNe catalogue. The first Sloan $r'$ and $i'$ analysis of the MMRD relationship in M31 is performed using the resulting POINT-AGAPE CN...
POINT-AGAPE Pixel Lensing Survey of M31 : Evidence for a MACHO contribution to Galactic Halos (2005)
Calchi Novati, S., Paulin-Henriksson, S., An, J., Baillon, P., Belokurov, V., Carr, B.J., ...
The POINT-AGAPE collaboration is carrying out a search for gravitational microlensing toward M31 to reveal galactic dark matter in the form of MACHOs (Massive Astrophysical Compact Halo Objects) in...
The POINT-AGAPE survey II: An Unrestricted Search for Microlensing Events towards M31 (2005)
Belokurov, V., An, J., Evans, N.W., Hewett, P., Baillon, P., Calchi Novati, S., ...
An automated search is carried out for microlensing events using a catalogue of 44554 variable superpixel lightcurves derived from our three-year monitoring program of M31. Each step of our candidate...
Darnley, M.J., Bode, M.F., Kerins, E., Newsam, A.M., An, J., Baillon, P., ...
We report the results of our statistical study of the POINT-AGAPE CNe catalogue. The first Sloan $r'$ and $i'$ analysis of the MMRD relationship in M31 is performed using the resulting POINT-AGAPE CN...
POINT-AGAPE Pixel Lensing Survey of M31 : Evidence for a MACHO contribution to Galactic Halos (2005)
Calchi Novati, S., Paulin-Henriksson, S., An, J., Baillon, P., Belokurov, V., Carr, B.J., ...
The POINT-AGAPE collaboration is carrying out a search for gravitational microlensing toward M31 to reveal galactic dark matter in the form of MACHOs (Massive Astrophysical Compact Halo Objects) in...
The POINT-AGAPE survey II: An Unrestricted Search for Microlensing Events towards M31 (2005)
Belokurov, V., An, J., Evans, N.W., Hewett, P., Baillon, P., Calchi Novati, S., ...
An automated search is carried out for microlensing events using a catalogue of 44554 variable superpixel lightcurves derived from our three-year monitoring program of M31. Each step of our candidate...
Upper limits on the size of a primordial black hole (2004)
We provide precise constraints on the size of any black holes forming in the early Universe for a variety of formation scenarios. In particular, we prove that the size of the apparent horizon of a...
Growth of primordial black holes in a universe containing a massless scalar field (2004)
The evolution of primordial black holes in a flat Friedmann universe with a massless scalar field is investigated in fully general relativistic numerical relativity. A primordial black hole is...
The POINT-AGAPE survey II: An Unrestricted Search for Microlensing Events towards M31 (2004)
Belokurov, V., An, J., Evans, N. W., Hewett, P., Baillon, P., Novati, S. Calchi, ...
An automated search is carried out for microlensing events using a catalogue of 44554 variable superpixel lightcurves derived from our three-year monitoring program of M31. Each step of our candidate...
Classical novae from the POINT-AGAPE microlensing survey of M31 -- I. The nova catalogue (2004)
Darnley, M. J., Bode, M. F., Kerins, E., Newsam, A. M., An, J., Baillon, P., ...
The POINT-AGAPE survey is an optical search for gravitational microlensing events towards the Andromeda Galaxy (M31). As well as microlensing, the survey is sensitive to many different classes of...
The POINT-AGAPE Survey I: The Variable Stars in M31 (2004)
An Jun Hong, Evans, Y N W, Hewett, P C, Baillon, Paul, Calchi-Novati, S, Carr, B J, ...
The POINT-AGAPE collaboration has been monitoring M31 for three seasons with the Wide Field Camera on the Isaac Newton Telescope. In each season, data are taken for one hour per night for roughly...
The POINT-AGAPE Survey I: The Variable Stars in M31 (2004)
An, Jin H., Evans, N. W., Hewett, P., Baillon, P., Novati, S. Calchi, Carr, B. J., ...
The POINT-AGAPE collaboration has been monitoring M31 for three seasons with the Wide Field Camera on the Isaac Newton Telescope. In each season, data are taken for one hour per night for roughly...
Classical novae from the POINT-AGAPE microlensing survey of M31 -- I. The nova catalogue (2004)
Darnley, M.J., Bode, M.F., Kerins, E., Newsam, A.M., An, J., Baillon, P., ...
The POINT-AGAPE survey is an optical search for gravitational microlensing events towards the Andromeda Galaxy (M31). As well as microlensing, the survey is sensitive to many different classes of...
The POINT-AGAPE Survey I: The Variable Stars in M31 (2004)
An, J.H, Evans, N.W., Hewett, P., Baillon, P., Calchi Novati, S., Carr, B.J., ...
The POINT-AGAPE collaboration has been monitoring M31 for three seasons with the Wide Field Camera on the Isaac Newton Telescope. In each season, data are taken for one hour per night for roughly...
The Anomaly in the Candidate Microlensing Event PA-99-N2 (2004)
An, J.H., Evans, N.W., Kerins, E., Baillon, P., Calchi-Novati, S., Carr, B.J., ...
The lightcurve of PA-99-N2, one of the recently announced microlensing candidates towards M31, shows small deviations from the standard Paczynski form. We explore a number of possible explanations,...
Classical novae from the POINT-AGAPE microlensing survey of M31 -- I. The nova catalogue (2004)
Darnley, M.J., Bode, M.F., Kerins, E., Newsam, A.M., An, J., Baillon, P., ...
The POINT-AGAPE survey is an optical search for gravitational microlensing events towards the Andromeda Galaxy (M31). As well as microlensing, the survey is sensitive to many different classes of...
The POINT-AGAPE Survey I: The Variable Stars in M31 (2004)
An, J.H, Evans, N.W., Hewett, P., Baillon, P., Calchi Novati, S., Carr, B.J., ...
The POINT-AGAPE collaboration has been monitoring M31 for three seasons with the Wide Field Camera on the Isaac Newton Telescope. In each season, data are taken for one hour per night for roughly...
The Anomaly in the Candidate Microlensing Event PA-99-N2 (2004)
An, J.H., Evans, N.W., Kerins, E., Baillon, P., Calchi-Novati, S., Carr, B.J., ...
The lightcurve of PA-99-N2, one of the recently announced microlensing candidates towards M31, shows small deviations from the standard Paczynski form. We explore a number of possible explanations,...
The POINT-AGAPE Survey I: The Variable Stars in M31 (2004)
An, J.H, Evans, N.W., Hewett, P., Baillon, P., Calchi Novati, S., Carr, B.J., ...
The POINT-AGAPE collaboration has been monitoring M31 for three seasons with the Wide Field Camera on the Isaac Newton Telescope. In each season, data are taken for one hour per night for roughly...
The Anomaly in the Candidate Microlensing Event PA-99-N2 (2004)
An, J.H., Evans, N.W., Kerins, E., Baillon, P., Calchi-Novati, S., Carr, B.J., ...
The lightcurve of PA-99-N2, one of the recently announced microlensing candidates towards M31, shows small deviations from the standard Paczynski form. We explore a number of possible explanations,...
The POINT-AGAPE Survey I: The Variable Stars in M31 (2004)
An, J.H, Evans, N.W., Hewett, P., Baillon, P., Calchi Novati, S., Carr, B.J., ...
The POINT-AGAPE collaboration has been monitoring M31 for three seasons with the Wide Field Camera on the Isaac Newton Telescope. In each season, data are taken for one hour per night for roughly...
The Anomaly in the Candidate Microlensing Event PA-99-N2 (2004)
An, J.H., Evans, N.W., Kerins, E., Baillon, P., Calchi-Novati, S., Carr, B.J., ...
The lightcurve of PA-99-N2, one of the recently announced microlensing candidates towards M31, shows small deviations from the standard Paczynski form. We explore a number of possible explanations,...
The POINT-AGAPE Survey I: The Variable Stars in M31 (2004)
An, J.H, Evans, N.W., Hewett, P., Baillon, P., Calchi Novati, S., Carr, B.J., ...
The POINT-AGAPE collaboration has been monitoring M31 for three seasons with the Wide Field Camera on the Isaac Newton Telescope. In each season, data are taken for one hour per night for roughly...
The Anomaly in the Candidate Microlensing Event PA-99-N2 (2004)
An, J.H., Evans, N.W., Kerins, E., Baillon, P., Calchi-Novati, S., Carr, B.J., ...
The lightcurve of PA-99-N2, one of the recently announced microlensing candidates towards M31, shows small deviations from the standard Paczynski form. We explore a number of possible explanations,...
Primordial Black Holes as a Probe of Cosmology and High Energy Physics (2003)
Recent developments in the study of primordial black holes (PBHs) will be reviewed, with particular emphasis on their formation and evaporation. PBHs could provide a unique probe of the early...
The Anomaly in the Candidate Microlensing Event PA-99-N2 (2003)
An Jun Hong, Evans, N W, Kerins, E, Baillon, Paul, Calchi-Novati, S, Carr, B J, ...
The lightcurve of PA-99-N2, one of the recently announced microlensing candidates towards M31, shows small deviations from the standard Paczynski form. We explore a number of possible explanations,...
The Anomaly in the Candidate Microlensing Event PA-99-N2 (2003)
An Jun Hong, Evans, N W, Kerins, E, Baillon, Paul, Calchi-Novati, S, Carr, B J, ...
The lightcurve of PA-99-N2, one of the recently announced microlensing candidates towards M31, shows small deviations from the standard Paczynski form. We explore a number of possible explanations,...
The Anomaly in the Candidate Microlensing Event PA-99-N2 (2003)
Evans, N. W., Kerins, E., Baillon, P., Calchi-Novati, S., Carr, B. J., ...
The lightcurve of PA-99-N2, one of the recently announced microlensing candidates towards M31, shows small deviations from the standard Paczynski form. We explore a number of possible explanations,...
Kerins, E, An, J, Evans, N W, Baillon, Paul, Carr, B J, Giraud-Héraud, Yannick, ...
The POINT-AGAPE collaboration is currently searching for massive compact halo objects (MACHOs) towards the Andromeda galaxy (M31). The survey aims to exploit the high inclination of the M31 disk,...
An, J., Evans, N. W., Baillon, P., Carr, B. J., Giraud-Heraud, Y., ...
The POINT-AGAPE collaboration is currently searching for massive compact halo objects (MACHOs) towards the Andromeda galaxy (M31). The survey aims to exploit the high inclination of the M31 disk,...
Spacetime structure of self-similar spherically symmetric perfect fluid solutions (2003)
We classify all spherically symmetric and homothetic spacetimes that are allowed kinematically by constructing them from a small number of building blocks. We then restrict attention to a particular...
The POINT-AGAPE survey: 4 high signal-to-noise microlensing candidates detected towards M31 (2003)
Paulin-Henriksson, S., Baillon, P., Bouquet, A., Carr, B.J., Creze, M., Evans, N.W., ...
We have carried out a survey of the Andromeda galaxy for unresolved microlensing (pixel lensing). We present a subset of four short timescale, high signal-to-noise microlensing candidates found by...
The POINT-AGAPE survey: 4 high signal-to-noise microlensing candidates detected towards M31 (2003)
Paulin-Henriksson, S., Baillon, P., Bouquet, A., Carr, B.J., Creze, M., Evans, N.W., ...
We have carried out a survey of the Andromeda galaxy for unresolved microlensing (pixel lensing). We present a subset of four short timescale, high signal-to-noise microlensing candidates found by...
Spacetime structure of self-similar spherically symmetric perfect fluid solutions (2002)
Carr, B. J., Gundlach, Carsten
We classify all spherically symmetric and homothetic spacetimes that are allowed kinematically by constructing them from a small number of building blocks. We then restrict attention to a particular...
Paulin-Henriksson, S., Baillon, P., Bouquet, A., Carr, B. J., Creze, M., Evans, N. W., ...
We have carried out a survey of the Andromeda galaxy for unresolved microlensing (pixel lensing). We present a subset of four short timescale, high signal-to-noise microlensing candidates found by...
A Candidate M31/M32 Intergalactic Microlensing Event (2002)
Paulin-Henriksson, S, Baillon, Paul, Bouquet, A, Carr, B J, Creze, M, Evans, N W, ...
We report the discovery of a microlensing candidate projected 2'54" from the center of M32, on the side closest to M31. The blue color (R-I= 0.00 +/- 0.14) of the source argues strongly that it lies...
A Candidate M31/M32 Intergalactic Microlensing Event (2002)
Paulin-Henriksson, S, Baillon, Paul, Bouquet, A, Carr, B J, Creze, M, Evans, N W, ...
We report the discovery of a microlensing candidate projected 2'54" from the center of M32, on the side closest to M31. The blue color (R-I= 0.00 +/- 0.14) of the source argues strongly that it lies...
A Candidate M31/M32 Intergalactic Microlensing Event (2002)
Paulin-Henriksson, S., Baillon, P., Bouquet, A., Carr, B. J., Creze, M., Evans, N. W., ...
We report the discovery of a microlensing candidate projected 2'54" from the center of M32, on the side closest to M31. The blue color (R-I= 0.00 +/- 0.14) of the source argues strongly that it lies...
AGAPE : Gravitational microlensing effect to look for MACHOs towards M31 (2002)
Paulin-Henriksson, S., Auriere, M., Baillon, P., Bouquet, A., Carr, B.J., Creze, M., ...
Tolman-Bondi collapse in scalar-tensor theories as a probe of gravitational memory (2001)
Harada, T., Goymer, C., Carr, B. J.
In cosmological models with a varying gravitational constant, it is not clear whether primordial black holes preserve the value of $G$ at their formation epoch. We investigate this question by using...
Recent developments in the search for baryonic dark matter (2001)
Cosmological nucleosynthesis calculations imply that many of the baryons in the Universe must be dark. We discuss the likelihood that some of these dark baryons may reside in galaxies as Massive...
Primordial black holes as a probe of the early universe and a varying gravitational constant (2001)
We discuss recent developments in the study of primordial black holes, focussing particularly on their formation and quantum evaporation. Such studies can place important constraints on models of the...
A Short Timescale Candidate Microlensing Event in the POINT-AGAPE Pixel Lensing Survey of M31 (2001)
Auriere, M., Baillon, P., Bouquet, A., Carr, B. J., Creze, M., Evans, N. W., ...
We report the discovery of a short-duration microlensing candidate in the northern field of the POINT-AGAPE pixel lensing survey towards M31. The full-width half-maximum timescale is very short, just...
Gravitational Memory ? - a Perturbative Approach (2001)
Harada, T., Carr, B. J., Goymer, C. A.
It has been pointed out that the value of the gravitational ``constant'' in the early universe may be different from that at present. In that case, it was conjectured that primordial black holes may...
AGAPE : Gravitational microlensing effect to look for MACHOs towards M31 (2001)
Paulin-Henriksson, S., Auriere, M., Baillon, P., Bouquet, A., Carr, B.J., Creze, M., ...
A Short-Timescale Candidate Microlensing Event in the POINT-AGAPE Pixel Lensing Survey of M31 (2001)
Auriere, M., Baillon, P., Bouquet, A., Carr, B.J., Creze, M., Evans, N.W., ...
AGAPE : Gravitational microlensing effect to look for MACHOs towards M31 (2001)
Paulin-Henriksson, S., Auriere, M., Baillon, P., Bouquet, A., Carr, B.J., Creze, M., ...
A Short-Timescale Candidate Microlensing Event in the POINT-AGAPE Pixel Lensing Survey of M31 (2001)
Auriere, M., Baillon, P., Bouquet, A., Carr, B.J., Creze, M., Evans, N.W., ...
Baryonic Dark Matter in Galaxies (2000)
Cosmological nucleosynthesis calculations imply that many of the baryons in the Universe must be dark. We discuss the likelihood that some of these dark baryons may reside in the discs or halos of...
An asymptotic analysis of spherically symmetric perfect fluid self-similar solutions (2000)
The asymptotic properties of self-similar spherically symmetric perfect fluid solutions with equation of state p=alpha mu (-1-1 or asymptotically static for 1>alpha >0. Others are associated with an...
Primordial black holes and gravitational memory (2000)
We discuss the various ways in which primordial black holes may have formed in the early Universe and how the effects of such black holes can be used to place constraints on cosmological models. We...
A classification of spherically symmetric self-similar dust models (2000)
We classify all spherically symmetric dust solutions of Einstein's equations which are self-similar in the sense that all dimensionless variables depend only upon $z\equiv r/t$. We show that the...
We discuss spherically symmetric perfect fluid solutions of Einstein's equations which have equation of state ($p=\alpha \mu$) and which are self-similar in the sense that all dimensionless variables...
Theory of pixel lensing towards M31 I: the density contribution and mass of MACHOs (2000)
Kerins, E., Carr, B. J., Evans, N. W., Hewett, P., Lastennet, E., Du, Y. Le, ...
POINT-AGAPE is an Anglo-French collaboration which is employing the Isaac Newton Telescope (INT) to conduct a pixel-lensing survey towards M31. In this paper we investigate what we can learn from...
Carr, B. J., Coley, A. A., Goliath, M., Nilsson, U. S., Uggla, C.
The purpose of this paper is to further investigate the solution space of self-similar spherically symmetric perfect-fluid models and gain deeper understanding of the physical aspects of these...
A complete classification of spherically symmetric perfect fluid similarity solutions (1999)
We classify all spherically symmetric perfect fluid solutions of Einstein's equations with equation of state p/mu=a which are self-similar in the sense that all dimensionless variables depend only...
Carr, B. J., Coley, A. A., Goliath, M., Nilsson, U. S., Uggla, C.
We consider the self-similar solutions associated with the critical behavior observed in the gravitational collapse of spherically symmetric perfect fluids with equation of state $p=\alpha\mu$. We...
Self-Similarity in General Relativity \endtitle (1998)
The different kinds of self-similarity in general relativity are discussed, with special emphasis on similarity of the ``first'' kind, corresponding to spacetimes admitting a homothetic vector. We...
Probing the Galactic Dark Matter Mass Funtion Using Microlensing and Direct Searches (1994)
If compact baryonic objects contribute significantly to the dark matter in our Galaxy, their mass function will present vital clues for galaxy formation theories and star formation processes in the...
Black Holes from Blue Spectra (1994)
Lidsey, James E., Carr, B. J., Gilbert, J. H.
Blue primordial power spectra with a spectral index $n>1$ can lead to a significant production of primordial black holes in the very early Universe. The evaporation of these objects leads to a number...
Infrared Searches for Dark Matter in the Form of Brown Dwarfs (1993)
Brown dwarfs, stars with insufficient mass to burn hydrogen, could contribute to the dark matter in the Galactic disk, galactic halos or even a background critical density. We consider the...