Bolometric luminosity variations in the Luminous Blue Variable AFGL2298 (2009)
Clark, J. S., Crowther, P. A., Larionov, V. M., Steele, I. A., Ritchie, B. W., Arkharov, A. A.
We characterise the variability in the physical properties of the luminous blue variable AFGL2298 between 1989-2008. In conjunction with published data from 1989-2001, we have undertaken a long term...
A transit timing analysis of seven RISE light curves of the exoplanet system HAT-P-3 (2009)
Gibson, N. P., Pollacco, D., Barros, S., Benn, C., Christian, D., Hrudková, M., ...
We present seven light curves of the exoplanet system HAT-P-3, taken as part of a transit timing program using the RISE instrument on the Liverpool Telescope. The light curves are analysed using a...
A transit timing analysis of nine RISE light curves of the exoplanet system TrES-3 (2009)
Gibson, N. P., Pollacco, D., Skillen, I., Simpson, E. K., Barros, S., Joshi, Y. C., ...
We present nine newly observed transits of TrES-3, taken as part of a transit timing program using the RISE instrument on the Liverpool Telescope. A Markov-Chain Monte-Carlo analysis was used to...
Rise and fall of the X-ray flash 080330: an off-axis jet? (2009)
Guidorzi, C., Clemens, C., Kobayashi, S., Granot, J., Melandri, A., D'Avanzo, P., ...
X-ray flashes (XRFs) are a class of gamma-ray bursts (GRBs) with the peak energy of the time-integrated spectrum, Ep, below 30 keV, whereas classical GRBs have Ep of a few hundreds keV. Apart from Ep...
Melandri, A., Guidorzi, C., Kobayashi, S., Bersier, D., Mundell, C. G., Milne, P., ...
We present a comprehensive multiwavelength temporal and spectral analysis of the FRED GRB 070419A. The early-time emission in the $\gamma$-ray and X-ray bands can be explained by a central engine...
Rise and fall of the X-ray flash 080330: an off-axis jet? (2009)
Guidorzi, C., Clemens, C., Kobayashi, S., Granot, J., Melandri, A., D'Avanzo, P., ...
Original article can be found at: http://www.aanda.org/ Copyright The European Southern Observatory (ESO). DOI: 10.1051/0004-6361/200911719
Rise and fall of the X-ray flash 080330: an off-axis jet? (2009)
Guidorzi, C., Clemens, C., Kobayashi, S., Granot, J., Melandri, A., D'Avanzo, P., ...
Gibson, N. P., Pollacco, D., Simpson, E. K., Joshi, Y. C., Todd, I., Benn, C., ...
Some of the first results are reported from RISE - a new fast camera mounted on the Liverpool Telescope primarily designed to obtain high time resolution light curves of transiting extrasolar planets...
RISE: a fast-readout imager for exoplanet transit timing (2008)
Steele, I. A., Bates, S. D., Gibson, N., Keenan, F., Meaburn, J., Mottram, C. J., ...
By the precise timing of the low amplitude (0.005 - 0.02 magnitude) transits of exoplanets around their parent star it should be possible to infer the presence of other planetary bodies in the system...
Inferring statistics of planet populations by means of automated microlensing searches (2008)
Dominik, M., Jorgensen, U. G., Horne, K., Tsapras, Y., Street, R. A., Wyrzykowski, L., ...
(abridged) The study of other worlds is key to understanding our own, and not only provides clues to the origin of our civilization, but also looks into its future. Rather than in identifying nearby...
GRB 080319B: A Naked-Eye Stellar Blast from the Distant Universe (2008)
Racusin, J. L., Karpov, S. V., Sokolowski, M., Granot, J., Wu, X. F., Pal'shin, V., ...
Long duration gamma-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse...
Gomboc, A., Kobayashi, S., Guidorzi, C., Melandri, A., Mangano, V., Sbarufatti, B., ...
We present a detailed study of the prompt and afterglow emission from Swift GRB 061126 using BAT, XRT, UVOT data and multi-color optical imaging from ten ground-based telescopes. GRB 061126 was a...
The Early-time Optical Properties of Gamma-Ray Burst Afterglows (2008)
Melandri, A., Mundell, C. G., Kobayashi, S., Guidorzi, C., Gomboc, A., Steele, I. A., ...
We present a multiwavelength analysis of 63 Gamma-Ray Bursts observed with the world's three largest robotic optical telescopes, the Liverpool and Faulkes Telescopes (North and South). Optical...
Dominik, M., Horne, K., Allan, A., Rattenbury, N. J., Tsapras, Y., Snodgrass, C., ...
(abridged) The technique of gravitational microlensing is currently unique in its ability to provide a sample of terrestrial exoplanets around both Galactic disk and bulge stars, allowing to measure...
The Early-Time Optical Properties of Gamma-Ray Burst Afterglows. (2008)
Melandri, A., Mundell, C.G., Kobayashi, S., Guidorzi, C., Gomboc, A., Steele, I.A., ...
Original article can be found at: http://www.iop.org/EJ/journal/apj Copyright American Astronomical Society DOI: 10.1086/591243 [Full text of this article is not available in the UHRA]
Gomboc, A., Kobayashi, S., Guidorzi, C., Melandri, A., Mangano, V., Sbarufatti, B., ...
We present a detailed study of the prompt and afterglow emission from Swift GRB 061126 using BAT, XRT, UVOT data and multicolor optical imaging from 10 ground-based telescopes. GRB 061126 was a long...
Broadband observations of the naked-eye gamma-ray burst GRB 080319B (2008)
Racusin, J.L., Karpov, S.V., Sokolowski, M., Granot, J., Wu, X.F., Pal'shin, V., ...
Long-duration gamma-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse...
M. J. Coe, J. Fabregat, I. A. Steele, M. D. Still
A&A manuscript no. (will be inserted by hand later) Your thesaurus codes are:
The Remarkable Afterglow of GRB 061007: Implications for Optical Flashes and GRB Fireballs (2007)
Mundell, Carole G., Melandri, Andrea, Guidorzi, Cristiano, Kobayashi, S., Steele, I.A., Malesani, Daniele, ...
We present a multiwavelength analysis of Swift GRB 061007. The 2-m robotic Faulkes Telescope South (FTS) began observing 137 s after the onset of the gamma-ray emission, when the optical counterpart...
The prompt to late-time multiwavelength analysis of GRB 060210 (2007)
Curran, P. A., Van Der Horst, A. J., Beardmore, A. P., Page, K. L., Rol, E., Melandri, A., ...
We present our analysis of the multiwavelength photometric & spectroscopic observations of GRB 060210 and discuss the results in the overall context of current GRB models. All available optical data...
A Review of Early-Time Optical Follow-ups with 2-m Robotic Telescopes (2006)
Gomboc, A., Guidorzi, C., Mundell, C. G., Melandri, A., Monfardini, A., Bersier, D., ...
We summarise recent deep, rapid GRB follow-up observations using the RoboNet-1.0 network which comprises three fully-robotic 2-m telescopes, the Liverpool Telescope and the Faulkes Telescopes North...
Guidorzi, C., Gomboc, A., Kobayashi, S., Mundell, C. G., Rol, E., Bode, M. F., ...
We report a multi-wavelength analysis of the prompt emission and early afterglow of GRB051111 and discuss its properties in the context of current fireball models. The detection of GRB051111 by the...
The Remarkable Afterglow of GRB 061007: Implications for Optical Flashes and GRB Fireballs (2006)
Mundell, C. G., Melandri, A., Guidorzi, C., Kobayashi, S., Steele, I. A., Malesani, D., ...
We present a multiwavelength analysis of Swift GRB 061007. The 2-m robotic Faulkes Telescope South (FTS) began observing 137 s after the onset of the gamma-ray emission, when the optical counterpart...
Anatomy of A Dark Burst - The Afterglow of GRB 060108 (2006)
Oates, S. R., Mundell, C. G., Piranomonte, S., Page, K. L., De Pasquale, M., Monfardini, A., ...
We report the first detection of an optical afterglow of a GRB (060108) that would have been classified as 'dark' in the absence of deep, rapid ground-based optical imaging with the 2-m robotic...
Finding benchmark brown dwarfs to probe the IMF as a function of time (2006)
Pinfield, D. J., Jones, H. R. A., Lucas, P. W., Kendall, T. R., Folkes, S. L., Day-Jones, A. C., ...
Using a simulated disk brown dwarf (BD) population, we find that new large area infrared surveys are expected to identify enough BDs covering wide enough mass--age ranges to potentially measure the...
Microlens OGLE-2005-BLG-169 Implies Cool Neptune-Like Planets are Common (2006)
Gould, A., Udalski, A., An, D., Bennett, D. P., Dong, S., ...
We detect a Neptune mass-ratio (q~8e-5) planetary companion to the lens star in the extremely high-magnification (A~800) microlensing event OGLE-2005-BLG-169. If the parent is a main-sequence star,...
Monfardini, A., Kobayashi, S., Guidorzi, C., Carter, D., Mundell, C. G., Bersier, D. F., ...
The 2-m robotic Liverpool Telescope (LT) reacted promptly to the high-redshift (z=4.048) gamma-ray burst GRB 060206. The afterglow was identified automatically and multicolor r'i'z' imaging was...
A representative sample of Be stars III: H band spectroscopy (2006)
We present H band (1.53 mu m-1.69 mu m) spectra of 57 isolated Be stars of spectral types O9-B9 and luminosity classes III, IV & V. The H i Brackett (n-4) series is seen in emission from Br-11-18,...
The Liverpool telescope (2006)
The Liverpool Telescope is a 2.0 metre robotic telescope on La Palma. It achieved first light in July 2003, and began science operations in January 2004, with (supervised) robotic operation from...
Finding benchmark brown dwarfs to probe the sub-stellar IMF as a function of time (2006)
Pinfield, D.J., Jones, H.R.A., Lucas, R.A., Kendall, T.R., Folkes, S.L., Day-Jones, A.C., ...
The Automatic Real-Time GRB Pipeline of the 2-m Liverpool Telescope (2005)
Guidorzi, C., Monfardini, A., Gomboc, A., Mottram, C. J., Mundell, C. G., Steele, I. A., ...
The 2-m Liverpool Telescope (LT), owned by Liverpool John Moores University, is located in La Palma (Canary Islands) and operates in fully robotic mode. In 2005, the LT began conducting an automatic...
Guidorzi, C., Monfardini, A., Gomboc, A., Mundell, C. G., Steele, I. A., Carter, D., ...
The 2-m robotic Liverpool Telescope reacted promptly to the gamma-ray burst GRB 050502a discovered by INTEGRAL and started observing 3 min after the onset of the GRB. The automatic identification of...
Crossing into the substellar regime in Praesepe (2005)
Chappelle, R. J., Pinfield, D. J., Steele, I. A., Dobbie, P. D., Magazzu, A.
We present the results of a deep optical 2.6 square degree survey with near infrared follow-up measurements of the intermediate-aged Praesepe open cluster. The survey is complete to I=21.3, Z=20.5,...
Gomboc, A., Mundell, C. G., Guidorzi, C., Monfardini, A., Mottram, C. J., Priddey, R., ...
We present the first optical observations of a Gamma Ray Burst (GRB) afterglow using the 2-m robotic Liverpool Telescope (LT), which is owned and operated by Liverpool John Moores University and...
The Liverpool Telescope Automatic Pipeline for Real-time GRB Afterglow Detection (2005)
Gomboc, A., Monfardini, A., Guidorzi, C., Mundell, C. G., Mottram, C. J., Fraser, S. N., ...
The 2-m robotic Liverpool Telescope (LT) is ideally suited to the rapid follow-up of unpredictable and transient events such as GRBs. Our GRB follow-up strategy is designed to identify optical/IR...
Crossing into the substellar regime in Praesepe (2005)
Chappelle, R.J., Pinfield, D.J., Steele, I.A., Dobbie, P.D., Magazzu, A.
Rapid GRB Follow-up with the 2-m Robotic Liverpool Telescope (2004)
Gomboc, A., Bode, M. F., Carter, D., Guidorzi, C., Monfardini, A., Mundell, C. G., ...
We present the capabilities of the 2-m robotic Liverpool Telescope (LT), owned and operated by Liverpool John Moores University and situated at ORM, La Palma. Robotic control and scheduling of the LT...
Pinfield, D. J., Jones, H. R. A., Steele, I. A.
We present the results of a simulation to investigate the prospects of measuring mass, age, radius, metallicity and luminosity data for brown dwarfs in fully eclipsing binary systems around late K...
The Liverpool Telescope Spectrograph: FRODOSpec (2004)
Morales-Rueda, L., Carter, D., Steele, I. A., Charles, P. A., Worswick, S.
We describe in some detail one of the instruments that will be available in 2004 to the research community. FRODOSpec is an integral field unit spectrograph that will be available for use with the 2...
Gomboc, A., Bode, M. F., Carter, D., Mundell, C. G., Newsam, A. M., Smith, R. J., ...
The Liverpool Telescope, situated at Roque de los Muchachos Observatory, La Palma, Canaries, is the first 2-m, fully instrumented robotic telescope. It recently began observations. Among Liverpool...
James, P. A., Shane, N. S., Beckman, J. E., Cardwell, A., Collins, C. A., Etherton, J., ...
We discuss the selection and observations of a large sample of nearby galaxies, which we are using to quantify the star formation activity in the local Universe. The sample consists of 334 galaxies...
GRB optical and IR rapid follow-up with the 2 m Liverpool Robotic Telescope (2003)
Gomboc, A., Bode, M. F., Carter, D., Mundell, C. G., Newsam, A. M., Smith, R. J., ...
The Liverpool Telescope, owned and operated by Liverpool John Moores University and situated at Roque de los Muchachos, La Palma, is the first 2-m, fully instrumented robotic telescope. We plan to...
Brown dwarfs and low-mass stars in the Pleiades and Praesepe:- Membership and binarity (2003)
Pinfield, D. J., Dobbie, P. D., Jameson, R. F., Steele, I. A., Jones, H. R. A., Katsiyannis, A. C.
We present near infrared J-, H- and K-band photometry and optical spectroscopy of low-mass star and brown dwarf (BD) candidates in the Pleiades and Praesepe open clusters. We find that Pleiades stars...
Brown dwarfs and low-mass stars in the Pleiades and Praesepe: membership and binarity (2003)
Pinfield, D.J., Dobbie, P.D., Jameson, Richard F., Steele, I.A., Jones, H.R.A., Katsiyannis, A.C.
Brown Dwarfs and low-mass stars in the Pleiades and Praesepe: membership and binarity (2003)
Pinfield, D., Dobbie, P.D., Jameson, R.F., Steele, I. A., Jones, H. R. A.
Brown Dwarfs and low-mass stars in the Pleiades and Praesepe: membership and binarity (2003)
Pinfield, D.J., Dobbie, P.D., Jameson, R.F., Steele, I.A., Jones, H.R.A., Katsiyannis, A. C.
Verrecchia, F., Israel, G. L., Negueruela, I., Covino, S., Polcaro, V. F., Clark, J. S., ...
We report on the discovery of the optical/IR counterpart of the 15.8s transient X-ray pulsar XTE J1946+274. We re-analysed archival BeppoSAX observations of XTE J1946+274, obtaining a new refined...
A representative sample of Be stars III: H band spectroscopy (2001)
We present H band (1.53 - 1.69 micron) spectra of 57 isolated Be stars of spectral types O9-B9 and luminosity classes III,IV & V. The HI Brackett (n-4) series is seen in emission from Br 11-18, and...
A representative sample of Be stars IV: Infrared Photometry and the Continuum Excess (2001)
Howells, Lee, Steele, I. A., Porter, John M., Etherton, J.
We present infra-red (JHK) photometry of 52 isolated Be stars of spectral types O9--B9 and luminosity classes III--V. We describe a new method of reduction, enabling separation of interstellar...
IZ Photometry of L dwarfs and the implications for brown dwarf surevys (2000)
The I-Z colour has been recently shown to be a good temperature indicator for M dwarfs. We present the first IZ photometry of a small sample of L dwarfs ranging in spectral type from L0.5V to L6.0V....
Disc loss and renewal in A0535+26 (1999)
Haigh, N. J., Coe, M. J., Steele, I. A., Fabregat, J.
This paper presents observations of the Be/X-ray binary system A0535+26 revealing the first observed loss of its circumstellar disc, demonstrated by the loss of its JHK infrared excess and optical/IR...
Steele, I. A., Negueruela, I., Clark, J. S.
We present a sample of 58 Be stars containing objects of spectral types O9 to B8.5 and luminosity classes III to V. We have obtained 3670 - 5070 Angstrom spectra of the sample which are used to...
A constraint on the angular momentum evolution of Be stars (1998)
The Be star sample of Steele et al. (1998) has a distribution of v sin i's that is luminosity dependant, with giants having lower projected rotational velocities than dwarfs. We show that this effect...
Brown Dwarfs in the Pleiades Cluster. III. A deep IZ survey (1998)
Osorio, M. R. Zapatero, Rebolo, R., Martin, E. L., Hodgkin, S. T., Cossburn, M. R., Magazzu, A., ...
We present the results of a deep CCD-based IZ photometric survey of a ~1 sq. deg area in the central region of the Pleiades Galactic open cluster. The magnitude coverage of our survey (from I~17.5...
Discovery of extended radio emission in the young cluster Wd1 (1998)
Clark, J. S., Fender, R. P., Dougherty, S. M., Koornneef, J., Steele, I. A., ...
We present 10 micron, ISO-SWS and Australia Telescope Compact Array observations of the region in the cluster Wd1 in Ara centred on the B[e] star Ara C. An ISO-SWS spectrum reveals emission from...
Radio observations of IRAS selected southern hemisphere classical Be stars (1998)
Clark, J S, Steele, I A, Fender, R P
We present the first radio observations of a sample of 13 optically and IR bright southern hemisphere classical Be stars made from the Australian Telescope Compact Array at 3.5cm and 6.3cm...
The distances to the X-ray binaries LSI +61 303 and A0535+262 (1998)
Steele, I. A., Negueruela, I, Coe, M. J., Roche, P.
Chevalier & Ilovaisky (1998) use Hipparcos data to show that the X-ray binary systems LSI+61 303 and A0535+262 are a factor of ten closer (i.e. d = few hundred pc) than previously thought (d = 2...
Discovery of extended radio emission inthe young cluster Wd1 (1998)
Clark, J.S., Fender, R.P., Dougherty, S.M., Koornneef, J., Steele, I.A., ...
A Multiwavelength Investigation of the Relationship Between 2CG135+1 and LSI+61o 303 (1997)
Strickman, M. S., Tavani, M., Coe, M. J., Steele, I. A., Fabregat, J., Marti, J., ...
We present the results of a multiwavelength monitoring campaign targeting the gamma-ray source 2CG 135+1 in an attempt to confirm the association of this object with the radio/Be/X-ray binary system...