Zobrazeno 1 - 10
of 376
pro vyhledávání: '"Beaulieu, A. D."'
Autor:
Wisk, Lauren E., Garvey, Katharine C., Fu, Christina, Landrum, Mary Beth, Beaulieu, Nancy D., Chien, Alyna T.
Publikováno v:
In Academic Pediatrics January-February 2024 24(1):59-67
Akademický článek
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Using new spectra of 88 K and M-type subdwarfs, we consider novel methods for assigning their spectral types and take steps toward developing a comprehensive spectral sequence for subdwarf types K3.0 to M6.0. The types are assigned based on the overa
Externí odkaz:
http://arxiv.org/abs/0805.2567
Autor:
Subasavage, John P., Henry, Todd J., Bergeron, P., Dufour, P., Hambly, Nigel C., Beaulieu, Thomas D.
Publikováno v:
Astron.J.134:252-261,2007
We present spectra for 33 previously unclassified white dwarf systems brighter than V = 17 primarily in the southern hemisphere. Of these new systems, 26 are DA, 4 are DC, 2 are DZ, and 1 is DQ. We suspect three of these systems are unresolved double
Externí odkaz:
http://arxiv.org/abs/0704.0894
Autor:
Subasavage, John P., Henry, Todd J., Bergeron, Pierre, Dufour, Patrick, Hambly, Nigel C., Beaulieu, Thomas D.
How confident are we that all of the nearest white dwarfs (WDs) have been identified? In an effort to answer this question, we have begun an initiative to identify and characterize new nearby WDs, particularly in the southern hemisphere. We estimate
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610946
Autor:
Henry, Todd J., Jao, Wei-Chun, Subasavage, John P., Beaulieu, Thomas D., Ianna, Philip A., Costa, Edgardo, Mendez, Rene A.
Publikováno v:
Astron.J.132:2360-2371,2006
Astrometric measurements for 25 red dwarf systems are presented, including the first definitive trigonometric parallaxes for 20 systems within 10 pc of the Sun, the horizon of the RECONS sample. The three nearest systems that had no previous trigonom
Externí odkaz:
http://arxiv.org/abs/astro-ph/0608230
Autor:
Raghavan, Deepak, Henry, Todd J., Mason, Brian D., Subasavage, John P., Jao, Wei-Chun, Beaulieu, Thom D., Hambly, Nigel C.
Publikováno v:
Astrophys.J. 646 (2006) 523-542
We present results of a reconnaissance for stellar companions to all 131 radial-velocity-detected candidate extrasolar planetary systems known as of July 1, 2005. CPM companions were investigated using the multi-epoch DSS images, and confirmed by mat
Externí odkaz:
http://arxiv.org/abs/astro-ph/0603836
Autor:
Boyajian, T. S., Beaulieu, T. D., Gies, D. R., Grundstrom, E., Huang, W., McSwain, M. V., Riddle, R. L., Wingert, D. W., De Becker, M.
Publikováno v:
Astrophys.J. 621 (2005) 978-984
We present results from a radial velocity study of two runaway O-type stars, HD 14633 (ON8.5 V) and HD 15137 (O9.5 III(n)). We find that HD 14633 is a single-lined spectroscopic binary with an orbital period of 15.4083 days. The second target HD 1513
Externí odkaz:
http://arxiv.org/abs/astro-ph/0410747
Autor:
Henry, Todd J., Subasavage, John P., Brown, Misty A., Beaulieu, Thomas D., Jao, Wei-Chun, Hambly, Nigel C.
Photometric VRI and spectroscopic (6000-9500 A) observations of high proper motion stars discovered during the first phase of the SuperCOSMOS RECONS (SCR) search are used to estimate accurate distances to eight new nearby red dwarfs, including probab
Externí odkaz:
http://arxiv.org/abs/astro-ph/0408240
Akademický článek
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