Zobrazeno 1 - 10
of 545
pro vyhledávání: '"Pokorny, R."'
Autor:
Rigby, J.C., Dixon, D.R., Kloužek, J., Pokorný, R., Thompson, P.B.J., Scrimshire, A., Kruger, A.A., Bell, A.M.T., Bingham, P.A.
Publikováno v:
In Journal of Non-Crystalline Solids 15 May 2023 608
Akademický článek
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Publikováno v:
In Journal of Non-Crystalline Solids 1 March 2020 531
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
Publikováno v:
In Materials Letters 15 January 2025 379
Autor:
Galvez-Ortiz, M. C., Clarke, J. R. A., Pinfield, D. J., Jenkins, J. S., Folkes, S. L., Perez, A. E. Garcia, Day-Jones, A. C., Burningham, B., Jones, H. R. A., Barnes, J. R., Pokorny, R. S.
We study a target sample of 68 low-mass objects (with spectral types in the range M4.5-L1) previously selected via photometric and astrometric criteria, as possible members of five young moving groups: the Local Association (Pleiades moving group, ag
Externí odkaz:
http://arxiv.org/abs/1007.3128
Autor:
Zhang, Z. H., Pinfield, D. J., Day-Jones, A. C., Burningham, B., Jones, H. R. A., Yu, S., Jenkins, J. S., Han, Z., Galvez-Ortiz, M. C., Gallardo, J., Perez, A. E. Garcia, Weights, D., Tinney, C. G., Pokorny, R. S.
We identify 806 ultra-cool dwarfs from their SDSS riz photometry (of which 34 are newly discovered L dwarfs) and obtain proper motions through cross matching with UKIDSS and 2MASS. Proper motion and distance constraints show that nine of our ultra-co
Externí odkaz:
http://arxiv.org/abs/1001.3609
Autor:
Zhang, Z. H., Pokorny, R. S., Jones, H. R. A., Pinfield, D. J., Chen, P. S., Han, Z., Chen, D., Gálvez-Ortiz, M. C., Burningham, B.
Publikováno v:
Astronomy & Astrophysics 497 (2009) 619-633
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, and UKIDSS and improve spectral typing from SDSS and
Externí odkaz:
http://arxiv.org/abs/0902.2798
Publikováno v:
Proceedings of 10th Asian-Pacific Regional IAU Meeting 2008, P 191-193
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 dwarfs. Then we confirmed their status with SDSS spec
Externí odkaz:
http://arxiv.org/abs/0902.2677
Autor:
Clarke, J. R. A., Pinfield, D. J., Galvez-Ortiz, M. C., Jenkins, J. S., Burningham, B., Deacon, N. R., Jones, H. R. A., Pokorny, R. S., Barnes, J. R., Day-Jones, A. C.
Publikováno v:
Mon.Not.Roy.Astron.Soc.402:575-588,2010
We associate 132 low-mass ultracool dwarfs in the southern hemisphere as candidate members of five moving groups using photometric and astrometric selection techniques. Of these objects, we present high resolution spectroscopy for seven candidates an
Externí odkaz:
http://arxiv.org/abs/0805.4772