Zobrazeno 1 - 10
of 413
pro vyhledávání: '"Clarke, J R"'
Autor:
Pinfield, D. J., Gromadzki, M., Leggett, S. K., Gomes, J., Lodieu, N., Kurtev, R., Day-Jones, A. C., Ruiz, M. T., Cook, N. J., Morley, C. V., Marley, M. S., Marocco, F., Smart, R. L., Jones, H. R. A., Lucas, P. W., Beletsky, Y., Ivanov, V. D., Burningham, B., Jenkins, J. S., Cardoso, C., Frith, J., Clarke, J. R. A., Galvez-Ortiz, M. C., Zhang, Z.
We present a new Y dwarf, WISE J030449.03-270508.3, confirmed from a candidate sample designed to pick out low temperature objects from the WISE database. The new object is typed Y0pec following a visual comparison with spectral standards, and lies a
Externí odkaz:
http://arxiv.org/abs/1408.0284
Autor:
Borissova, J., Chené, A. -N., Alegría, S. Ramírez, Sharma, Saurabh, Clarke, J. R. A., Kurtev, R., Negueruela, I., Marco, A., Amigo, P., Minniti, D., Bica, E., Bonatto, C., Catelan, M., Fierro, C., Geisler, D., Gromadzki, M., Hempel, M., Hanson, M. M., Ivanov, V. D., Lucas, P., Majaess, D., Bidin, C. Moni, Popescu, B., Saito, R. K.
Publikováno v:
A&A 569, A24 (2014)
VISTA Variables in the V\'ia L\'actea (VVV) is one of six ESO Public Surveys using the 4 meter Visible and Infrared Survey Telescope for Astronomy (VISTA). The VVV survey covers the Milky Way bulge and an adjacent section of the disk, and one of the
Externí odkaz:
http://arxiv.org/abs/1406.7051
Autor:
Alegría, S. Ramírez, Borissova, J., Chené, A. N., O'Leary, E., Amigo, P., Minniti, D., Saito, R. K., Geisler, D., Kurtev, R., Hempel, M., Gromadzki, M., Clarke, J. R. A., Negueruela, I., Marco, A., Fierro, C., Bonatto, C., Catelan, M.
Context: Young massive clusters are key to map the Milky Way's structure, and near-IR large area sky surveys have contributed strongly to the discovery of new obscured massive stellar clusters. Aims: We present the third article in a series of papers
Externí odkaz:
http://arxiv.org/abs/1403.3428
Autor:
Gálvez-Ortiz, M. C., Kuznetsov, M., Clarke, J. R. A., Pavlenko, Ya. V., Folkes, S. L., Pinfield, D. J., Jones, H. R. A., Jenkins, J. S., Barnes, J. R., Burningham, B., Day-Jones, A. C., Martín, E. L., Pérez, A. E. García, del Burgo, C., Pokorny, R. S.
We present a study of age-related spectral signatures observed in 25 young low-mass objects that we have previously determined as possible kinematic members of five young moving groups: the Local Association (Pleiades moving group, age=20 - 150 Myr),
Externí odkaz:
http://arxiv.org/abs/1402.3479
Autor:
Wang, Y., Jones, H. R. A., Smart, R. L., Marocco, F., Pinfield, D. J., Shao, Z., Steele, I. A., Zhang, Z., Andrei, A. H., Burgasser, A. J., Cruz, K. L., Yu, J., Clarke, J. R. A., Leigh, C. J., Sozzetti, A., Murray, D. N., Burningham, B.
We report the parallax and proper motion of five L dwarfs obtained with observations from the robotic Liverpool Telescope. Our derived proper motions are consistent with published values and have considerably smaller errors. Based on our spectral typ
Externí odkaz:
http://arxiv.org/abs/1311.6707
Autor:
Marocco, F., Andrei, A. H., Smart, R. L., Jones, H. R. A., Pinfield, D. J., Day-Jones, A. C., Clarke, J. R. A., Sozzetti, A., Lucas, P. W., Bucciarelli, B., Penna, J. L.
We present near-infrared spectroscopy for 52 ultracool dwarfs, including two newly discovered late-M dwarfs, one new late-M subdwarf candidate, three new L and four new T dwarfs. We also present parallaxes and proper motions for 21 of them. Four of t
Externí odkaz:
http://arxiv.org/abs/1309.6525
Autor:
Pinfield, D. J., Gomes, J., Day-Jones, A. C., Leggett, S. K., Gromadzki, M., Burningham, B., Ruiz, M. T., Kurtev, R., Cattermole, T., Cardoso, C., Lodieu, N., Faherty, J., Littlefair, S., Smart, R., Irwin, M., Clarke, J. R. A., Smith, L., Lucas, P. W., Galvez-Ortiz, M. C., Jenkins, J. S., Jones, H. R. A., Rebolo, R., Bejar, V. J. S., Gauza, B.
A method is defined for identifying late T and Y dwarfs in WISE down to low values of signal-to-noise. This requires a WISE detection only in the W2-band and uses the statistical properties of the WISE multi-frame measurements and profile fit photome
Externí odkaz:
http://arxiv.org/abs/1308.0495
Autor:
Zhang, Z. H., Pinfield, D. J., Burningham, B., Jones, H. R. A., Galvez-Ortiz, M. C., Catalan, S., Smart, R. L., Lepine, S., Clarke, J. R. A., Pavlenko, Ya. V., Murray, D. N., Kuznetsov, M. K., Day-Jones, A. C., Gomes, J., Marocco, F., Sipocz, B.
Red subdwarfs in binary systems are crucial for both model calibration and spectral classification. We search for red subdwarfs in binary systems from a sample of high proper motion objects with Sloan digital Sky Survey spectroscopy. We present here
Externí odkaz:
http://arxiv.org/abs/1306.3060
Autor:
Day-Jones, A. C., Marocco, F., Pinfield, D. J., Zhang, Z. H., Burningham, B., Deacon, N., Ruiz, M. T., Gallardo, J., Jones, H. R. A., Lucas, P. W. L., Jenkins, J. S., Gomes, J., Folkes, S. L., Clarke, J. R. A.
We present a new sample of mid L to mid T dwarfs with effective temperatures of 1100 to 1700K selected from the UKIDSS Large Area Survey and confirmed with infrared spectra from X-Shooter/VLT. This effective temperature range is especially sensitive
Externí odkaz:
http://arxiv.org/abs/1301.4996
Autor:
Chené, A. -N., Borissova, J., Bonatto, C., Majaess, D. J., Baume, G., Clarke, J. R. A., Kurtev, R., Schnurr, O., Bouret, J. -C., Catelan, M., Emerson, J. P., Feinstein, C., Geisler, D., de Grijs, R., Hervé, A., Ivanov, V. D., Kumar, M. S. N., Lucas, P., Mahy, L., Martins, F., Mauro, F., Minniti, D., Bidin, C. Moni
Context: The ESO Public Survey "VISTA Variables in the V\'ia L\'actea" (VVV) provides deep multi-epoch infrared observations for an unprecedented 562 sq. degrees of the Galactic bulge, and adjacent regions of the disk. In this survey nearly 150 new o
Externí odkaz:
http://arxiv.org/abs/1211.2801