Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Braker, I."'
Autor:
Casewell, S. L., Debes, J., Braker, I. P., Cushing, M. C., Mace, G., Marley, M. S., Kirkpatrick, J. Davy
We present Spitzer observations at 3.6 and 4.5 microns and a near-infrared IRTF SpeX spectrum of the irradiated brown dwarf NLTT5306B. We determine that the brown dwarf has a spectral type of L5 and is likely inflated, despite the low effective tempe
Externí odkaz:
http://arxiv.org/abs/2010.07398
Autor:
Casewell, S. L., Belardi, C., Parsons, S. G., Littlefair, S. P., Braker, I. P., Hermes, J. J., Debes, J., Vanderbosch, Z., Burleigh, M. R., Gaensicke, B. T., Dhillon, V. S., Marsh, T. R., Winget, D. E., Winget, K. I.
We present the discovery of only the third brown dwarf known to eclipse a non-accreting white dwarf. Gaia parallax information and multi-colour photometry confirm that the white dwarf is cool (9950$\pm$150K) and has a low mass (0.45$\pm$0.05~MSun), a
Externí odkaz:
http://arxiv.org/abs/2006.09417
Autor:
Longstaff, E. S., Casewell, S. L., Wynn, G. A., Page, K. L., Williams, P. K. G., Braker, I., Maxted, P. F. L.
We present new XSHOOTER spectra of NLTT5306, a 0.44 $\pm$ 0.04\msun white dwarf in a short period (101\,min) binary system with a brown dwarf companion that is likely to have previously undergone common envelope evolution. We have confirmed the prese
Externí odkaz:
http://arxiv.org/abs/1901.05485
Autor:
Casewell, S. L., Braker, I. P., Parsons, S. G., Hermes, J. J., Burleigh, M. R., Belardi, C., Chaushev, A., Finch, N. L., Roy, M., Littlefair, S. P., Goad, M., Dennihy, E.
We present the discovery of the shortest-period, non-interacting, white dwarf-brown dwarf post-common-envelope binary known. The K2 light curve shows the system, EPIC 21223532 has a period of 68.2 min and is not eclipsing, but does show a large refle
Externí odkaz:
http://arxiv.org/abs/1801.07773
Autor:
Parsons, S. G., Hermes, J. J., Marsh, T. R., Gänsicke, B. T., Tremblay, P. -E., Littlefair, S. P., Sahman, D. I., Ashley, R. P., Green, M., Rattanasoon, S., Dhillon, V. S., Burleigh, M. R., Casewell, S. L., Buckley, D. A. H., Braker, I. P., Irawati, P., Dennihy, E., Rodríguez-Gil, P., Winget, D. E., Winget, K. I., Bell, K. J., Kilic, M.
Using data from the extended Kepler mission in K2 Campaign 10 we identify two eclipsing binaries containing white dwarfs with cool companions that have extremely short orbital periods of only 71.2 min (SDSS J1205-0242, a.k.a. EPIC 201283111) and 72.5
Externí odkaz:
http://arxiv.org/abs/1705.05856
Akademický článek
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Autor:
Casewell, S L, Debes, J, Braker, I P, Cushing, M C, Mace, G, Marley, M S, Kirkpatrick, J Davy
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Dec2020, Vol. 499 Issue 4, p5318-5324, 7p
Autor:
Longstaff, E S, Casewell, S L, Wynn, G A, Page, K L, Williams, P K G, Braker, I, Maxted, P F L
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Apr2019, Vol. 484 Issue 2, p2566-2574, 9p
Autor:
Braker, I. P., Burleigh, M. R., Goad, M. R., Casewell, S. L., Buckley, D., Holberg, J. B., Lawrie, K. A., Barstow, M. A.
Publikováno v:
ASP Conference Series; 2017, Vol. 509, p329-334, 6p
Autor:
Casewel, S. L., Braker, I. P., Parsons, S. G., Hermes, J. J., Burleigh, M. R., Belardi, C., Chaushev, A., Finch, N. L., Roy, M., Littlefair, S. P., Goad, M., Dennihy, E.
Publikováno v:
Monthly Notices of the Royal Astronomical Society; May2018, Vol. 476 Issue 1, p1405-1411, 7p