Benchmark ultra-cool dwarfs in widely separated binary systems (2009)
Zhang, Z. H., Pinfield, D. J., Day-Jones, A. C., Burningham, B., Jones, H. R. A.
Ultra-cool dwarfs as wide companions to subgiants, giants, white dwarfs and main sequence stars can be very good benchmark objects, for which we can infer physical properties with minimal reference...
A Search for molecules in the atmosphere of HD 189733b (2009)
Barnes, J. R., Barman, Travis S., Jones, H. R. A., Barber, R. J., Hansen, Brad M. S., Prato, L., ...
We use signal enhancement techniques and a matched filter analysis to search for the K band spectroscopic absorption signature of the close orbiting extrasolar giant planet, HD 189733b. With...
Rotation Velocities for M-dwarfs (2009)
Jenkins, J S, Ramsey, L W, Jones, H R A, Pavlenko, Y, Gallardo, J, Barnes, J R, ...
We present spectroscopic rotation velocities (v sin i) for 56 M dwarf stars using high resolution HET HRS red spectroscopy. In addition we have also determined photometric effective temperatures,...
The Physical Properties of Four ~600 K T Dwarfs (2009)
Leggett, S. K., Cushing, Michael C., Saumon, D., Marley, M. S., Roellig, T. L., Warren, S. J., ...
We present Spitzer 7.6-14.5 μm spectra of ULAS J003402.77–005206.7 and ULAS J133553.45+113005.2, two T9 dwarfs with the latest spectral types currently known. We fit synthetic spectra and...
Ultra-cool Dwarfs from Large Area Surveys (2009)
Zhang, Z. H., Jones, H. R. A., Pinfield, D. J., Pokorny, R. S., Han, Z.
We selected brown dwarf candidates from the seventh Data Release of the Sloan Digital Sky Survey (SDSS DR7) with new photometric selectioncriteria based on a parameteriaztion of well-known L and T...
Zhang, Z. H., Pokorny, R. S., Jones, H. R. A., Pinfield, D. J., Chen, P. S., Han, Z., ...
Aims. We try to identify ultra-cool dwarfs from the seventh Data Release of the Sloan Digital Sky Survey (SDSS DR7) with SDSS i-z and r-z colors. We also obtain proper motion data from SDSS, 2MASS,...
The discovery of an M4+T8.5 binary system (2009)
Burningham, Ben, Pinfield, D. J., Leggett, S. K., Tinney, C. G., Liu, M. C., Homeier, D., ...
We report the discovery of a T8.5 dwarf, which is a companion to the M4 dwarf Wolf 940. At a distance of 12.50 (+0.75,-0.67) pc, the angular separation of 32arcsec corresponds to a projected...
The Physical Properties of Four ~600K T Dwarfs (2009)
Leggett, S. K., Cushing, M. C., Saumon, D., Marley, M. S., Roellig, T. L., Warren, S. J., ...
We present Spitzer 7.6-14.5um spectra of ULAS J003402.77-005206.7 and ULAS J133553.45+113005.2, two T9 dwarfs with the latest spectral types currently known. We fit synthetic spectra and photometry...
Zhang, Z.H., Pokorny, R.S., Jones, H.R.A., Pinfield, D.J., Chen, P.S., Han, Z., ...
Original article can be found at: http://www.aanda.org/ Copyright The European Southern Observatory (ESO) DOI: 10.1051/0004-6361/200810314
The physical properties of four ~600 K T dwarfs. (2009)
Leggett, S., Cushing, M.C., Saumon, D., Marley, M., Roellig, T.L., Warren, S.J., ...
Original article can be found at: http://www.iop.org/EJ/journal/apj Copyright American Astronomical Society DOI: 10.1088/0004-637X/695/2/1517 [Full text of this article is not available in the UHRA]
A metal-biased planet search. (2009)
Jenkins, J.S., Jones, H.R.A., Barnes, J.R., Pavlenko, Y., Rojo, P., Jones, M.I., ...
Copyright (2009) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The...
Weights, D., Lucas, P.W., Roche, P.F., Pinfield, D.J., Riddick, F.
‘The definitive version is available at www3.interscience.wiley.com '. Copyright Blackwell Publishing / Royal Astronomical Society. DOI: 10.1111/j.1365-2966.2008.14096.x
Rotational velocities for M dwarfs. (2009)
Jenkins, J.S., Ramsey, L.W., Jones, H.R.A., Pavlenko, Y., Gallardo, J., Barnes, J.R., ...
Original article can be found at: http://www.iop.org/EJ/abstract/0004-637X/704/2/975 Copyright American Astronomical Society DOI: 10.1088/0004-637X/704/2/975 [Full text of this article is not...
Identifying nearby field T dwarfs in the UKIDSS Galactic Clusters Survey (2008)
Lodieu, N., Burningham, B., Hambly, N. C., Pinfield, D. J.
We present the discovery of two new late-T dwarfs identified in the UKIRT Infrared Deep Sky Survey (UKIDSS) Galactic Clusters Survey (GCS) Data Release 2 (DR2). These T dwarfs are nearby old T dwarfs...
Weights, D. J., Lucas, P. W., Roche, P. F., Pinfield, D. J., Riddick, F.
We present near-infrared long slit and multi-slit spectra of low mass brown dwarf candidates in the Orion Nebula Cluster. The long slit data were observed in the H- & K-bands using NIRI on the Gemini...
A Metal-biased Planet Search (2008)
Jenkins, J. S., Jones, H. R. A., Barnes, J. R., Pavlenko, Y., Rojo, P., Jones, M. I., ...
We have begun a metal-rich planet search project using the HARPS instrument in La Silla, Chile to target planets with a high potential to transit their host star and add to the number of bright...
Exploring the substellar temperature regime down to ~550K (2008)
Burningham, Ben, Pinfield, D. J., Leggett, S. K., Tamura, M., Lucas, P. W., Homeier, D., ...
We report the discovery of three very late T dwarfs in the UKIRT Infrared Deep Sky Survey (UKIDSS) Third Data Release: ULAS J101721.40+011817.9 (ULAS1017), ULAS J123828.51+095351.3 (ULAS1238) and...
Fifteen new T dwarfs discovered in the UKIDSS Large Area Survey (2008)
Pinfield, D. J., Burningham, B., Tamura, M., Leggett, S. K., Lodieu, N., Lucas, P. W., ...
We present the discovery of fifteen new T2.5-T7.5 dwarfs (with estimated distances between ~24-93pc, identified in the first three main data releases of the UKIRT Infrared Deep Sky Survey. This...
HD 179949b: A Close Orbiting Extrasolar Giant Planet with a stratosphere? (2008)
Barnes, J. R., Barman, Travis S., Jones, H. R. A., Leigh, C. J., Cameron, A. Collier, Barber, R. J., ...
We have carried out a search for the 2.14 micron spectroscopic signature of the close orbiting extrasolar giant planet, HD 179949b. High cadence time series spectra were obtained with the CRIRES...
Discovery of a widely separated UCD-WD binary (2008)
Day-Jones, A. C., Pinfield, D. J., Napiwotzki, R., Burningham, B., Jenkins, J. S., Jones, H. R. A., ...
We present the discovery of the widest known ultracool dwarf - white dwarf binary. This binary is the first spectroscopically confirmed widely separated system from our target sample. We have used...
Metallicities & Activities of Southern Stars (2008)
Jenkins, J. S., Jones, H. R. A., Pavlenko, Y., Pinfield, D. J., Barnes, J. R., Lyubchik, Y.
We present the results from high-resolution spectroscopic measurements to determine metallicities and activities of bright stars in the southern hemisphere. We have measured the iron abundances...
Properties of the Coolest Dwarfs. (2008)
Leggett, S., Freedman, R., Geballe, T., Golimowski, D., Lodieu, N., Marley, M., ...
Mining The Next Generation Of Surveys for Cool Star Science. (2008)
Pinfield, D.J., Liu, M.C., Jones, H.R.A., Kirkpatrick, J.D., Lister, T.A., Magnier, E.A., ...
Metallicities & Activities of Southern Stars. (2008)
Jenkins, J.S., Jones, H.R.A., Pavlenko, Y., Pinfield, D.J., Barnes, J.R., Lyubchik, Y.
Original article can be found at: http://www.aanda.org/ Copyright The European Southern Observatory DOI: 10.1051/0004-6361:20078611
Discovery of a widely separated ultracool dwarf–white dwarf binary. (2008)
Day-Jones, A.C., Pinfield, D.J., Napiwotzki, R., Burningham, B., Jenkins, J.S., Jones, H.R.A., ...
‘The definitive version is available at www.blackwell-synergy.com.’ Copyright Blackwell Publishing DOI: 10.1111/j.1365-2966.2008.13455.x
Exploring the substellar temperature regime down to ~550 K. (2008)
Burningham, B., Pinfield, D.J., Lucas, P.W., Jones, H.R.A.
The original article can be found at: http://www3.interscience.wiley.com Copyright Blackwell Publishing. DOI: 10.1111/j.1365-2966.2008.13885.x
HD 179949b: a close orbiting extrasolar giant planet with a stratosphere? (2008)
Barnes, J.R., Barman, T.S., Jones, H.R.A., Leigh, C.J., Cameron, A.C., Barber, R.J., ...
The original article can be found at: http://www3.interscience.wiley.com Copyright Blackwell Publishing. DOI: 10.1111/j.1365-2966.2008.13831.x
Limits on the 2.2 microns contrast ratio of the close orbiting planet HD 189733b (2007)
Barnes, J. R., Barman, Travis S., Prato, L., Segransan, D., Jones, H. R. A., Leigh, C. J., ...
We obtained 238 spectra of the close orbiting extrasolar giant planet HD 189733b with resolution R ~ 15,000 during one night of observations with the near infrared spectrograph, NIRSPEC, at the Keck...
A very cool brown dwarf in UKIDSS DR1 (2007)
Warren, S. J., Mortlock, D. J., Leggett, S. K., Pinfield, D. J., Homeier, D., Dye, S., ...
(abridged) We report the discovery of a very cool brown dwarf, ULAS J003402.77-005206.7 (ULAS J0034-00), identified in UKIDSS DR1. We provide optical, near-infrared, and mid-infrared photometry of...
New nearby, bright southern ultracool dwarfs. (2007)
Kendall, T.R., Jones, H.R.A., Pinfield, D.J., Pokorny, R.S., Folkes, S.L., Weights, D., ...
Two T dwarfs from the UKIDDS early data release. (2007)
Kendall, T.R., Tamura, M., Tinney, C.G., Martin, E., Ishii, M., Pinfield, D.J., ...
Near infrared spectroscopic search for the close orbiting planet HD 75289b. (2007)
Barnes, J.R., Leigh, C.J., Jones, H.R.A., Barman, T.S., Pinfield, D.J., Collier Cameron, A., ...
Eight new T4.5-T7.5 dwarfs discovered in the UKIDSS large area survey data release 1. (2007)
Lodieu, N., Pinfield, D.J., Leggett, S., Jameson, R.F., Mortlock, D.J., Warren, S.J.
Discovery of the First Very Wide WD LD Binary System (2007)
Day-Jones, A.C., Pinfield, D.J., Jones, H.R.A., Kendall, T.R., Napiwotzki, R., Jenkins, J.S.
A very cool brown dwarf in UKIDSS DR1. (2007)
Warren, S.J., Mortlock, D.J., Leggett, S., Pinfield, D.J., Homeier, D., Dye, S., ...
Limits on the 2.2-m contrast ratio of the close-orbiting planet HD 189733b. (2007)
Barnes, J.R., Barman, T.S., Prato, L., Segransan, D., Jones, H.R.A., Leigh, C.J., ...
Discovery of a nearby L-T transition object in the Southern Galactic plane. (2007)
Folkes, S.L., Pinfield, D.J., Kendall, T.R., Jones, H.R.A.
" The definitive version is available at www.blackwell-synergy.com " Copyright Blackwell Publishing / Royal Astronomical Society. DOI: 10.1111/j.1365-2966.2007.11789.x
The UKIRT infrared deep sky survey early data release (2006)
Dye, S., Warren, S.J., Hambly, N.C., Cross, N.J.G., Hodgkin, S.T., Irwin, M.J., ...
This paper defines the UKIRT Infrared Deep Sky Survey (UKIDSS) Early Data Release (EDR). UKIDSS is a set of five large near-infrared surveys being undertaken with the United Kingdom Infrared...
An activity catalogue of southern stars (2006)
Jenkins, J. S., Jones, Hugh R. A., Tinney, C. G., Butler, R. Paul, McCarthy, Chris, Marcy, Geoffrey W., ...
[Abstract]: We have acquired high-resolution echelle spectra of 225 F6-M5 type stars in the Southern hemisphere. The stars are targets or candidates to be targets for the Anglo-Australian Planet...
An activity catalogue of southern stars (2006)
Jenkins, J. S., Jones, Hugh R. A., Tinney, C. G., Butler, R. Paul, McCarthy, Chris, Marcy, Geoffrey W., ...
[Abstract]: We have acquired high-resolution echelle spectra of 225 F6-M5 type stars in the Southern hemisphere. The stars are targets or candidates to be targets for the Anglo-Australian Planet...
An activity catalogue of southern stars (2006)
Jenkins, J. S., Jones, Hugh R. A., Tinney, C. G., Butler, R. Paul, McCarthy, Chris, Marcy, Geoffrey W., ...
[Abstract]: We have acquired high-resolution echelle spectra of 225 F6-M5 type stars in the Southern hemisphere. The stars are targets or candidates to be targets for the Anglo-Australian Planet...
An activity catalogue of southern stars (2006)
Jenkins, J. S., Jones, Hugh R. A., Tinney, C. G., Butler, R. Paul, McCarthy, Chris, Marcy, Geoffrey W., ...
[Abstract]: We have acquired high-resolution echelle spectra of 225 F6-M5 type stars in the Southern hemisphere. The stars are targets or candidates to be targets for the Anglo-Australian Planet...
New, nearby bright southern ultracool dwarfs (2006)
Kendall, T. R., Jones, H. R. A., Pinfield, D. J., Pokorny, R. S., Folkes, S., Weights, D., ...
We report the discovery of twenty-one hitherto unknown bright southern ultracool dwarfs with spectral types in the range M7 to L5.5, together with new observations of a further three late M dwarfs...
An Activity Catalogue of Southern Stars (2006)
Jenkins, J. S., Jones, H. R. A., Tinney, C. G., Butler, R. P., McCarthy, C., Marcy, G. W., ...
We have acquired high-resolution echelle spectra of 225 F6-M5 type stars in the southern hemisphere. The stars are targets or candidates to be targets for the Anglo-Australian Planet Search. CaII HK...
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...
Spectral energy distribution for GJ406 (2006)
Pavlenko, Ya. V., Jones, H.R.A., Lyubchik, Yu., Tennyson, J., Pinfield, D.J.
We present results of modelling the bulk of the spectral energy distribution (0.45 - 5 μm ) for GJ406 (M6V). Synthetic spectra were calculated using the NextGen model atmospheres of Hauschildt et...
Spectral energy distribution for GJ406. (2006)
Pavlenko, Y., Jones, H.R.A., Lyubchik, Y., Tennyson, J., Pinfield, D.J.
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., ...
An activity catalogue of southern stars (2006)
Jenkins, J. S., Jones, Hugh R. A., Tinney, C. G., Butler, R. Paul, McCarthy, Chris, Marcy, Geoffrey W., ...
[Abstract]: We have acquired high-resolution echelle spectra of 225 F6-M5 type stars in the Southern hemisphere. The stars are targets or candidates to be targets for the Anglo-Australian Planet...
An activity catalogue of southern stars (2006)
Jenkins, J. S., Jones, Hugh R. A., Tinney, C. G., Butler, R. Paul, McCarthy, Chris, Marcy, Geoffrey W., ...
[Abstract]: We have acquired high-resolution echelle spectra of 225 F6-M5 type stars in the Southern hemisphere. The stars are targets or candidates to be targets for the Anglo-Australian Planet...
Carbon monoxide in low-mass dwarf stars (2005)
Jones, H.R.A., Pavlenko, Y., Viti, S., Barber, R.J., Yakovina, L.A., Pinfield, D.J., ...
Crossing into the substellar regime in Praesepe (2005)
Chappelle, R.J., Pinfield, D.J., Steele, I.A., Dobbie, P.D., Magazzu, A.
Praesepe and the seven white dwarfs. (2004)
Dobbie, P.D., Pinfield, D.J., Napiwotzki, R., Hambly, N.C., Burleigh, M.R., Barstow, M.A., ...
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.J., Dobbie, P.D., Jameson, R.F., Steele, I.A., Jones, H.R.A., Katsiyannis, A. C.
Optical and infrared spectroscopy of SN 1999ee and SN 1999ex (2002)
Hamuy, M., Maza, J., Pinto, P. A., Phillips, M. M., Suntzeff, N. B., Blum, R. D., ...
Brown dwarfs in the pleiades: spatial distribution and mass function (2002)
Jameson, Richard F., Dobbie, P.D., Hodgkin, S.T., Pinfield, D.J.
Discovery of a peculiar DQ white dwarf. (2002)
Carollo, D., Hodgkin, S.T., Spagna, A., Smart, R.L., Lattanzi, M.G., McLean, B.J., ...
Optical and Infrared Spectroscopy of SN 1999ee and SN 1999ex. (2002)
Hamuy, M., Maza, J., Pinto, P.A., Phillips, M.M., Suntzeff, N.B., Blum, R.D., ...