Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Harris, H. C."'
Autor:
Farihi, J., Subasavage, J. P., Nelan, E. P., Harris, H. C., Dahn, C. C., Nordhaus, J., Spiegel, D. S.
The potential existence of a giant planet orbiting within a few AU of a stellar remnant has profound implications for both the survival and possible regeneration of planets during post-main sequence stellar evolution. This paper reports Hubble Space
Externí odkaz:
http://arxiv.org/abs/1205.0806
Publikováno v:
J.Phys.Conf.Ser.172:012062,2009
We present a model atmosphere analysis of optical VRI and infrared JHK photometric data of about two dozen ZZ Ceti stars. We first show from a theoretical point of view that the resulting energy distributions are not particularly sensitive to surface
Externí odkaz:
http://arxiv.org/abs/0903.5335
Autor:
Kinemuchi, K., Harris, H. C., Smith, Horace A., Silbermann, N. A., Snyder, L. A., LaCluyze, A. P., Clark, C. L.
We present a CCD survey of variable stars in the Draco dwarf spheroidal galaxy. This survey, which has the largest areal coverage since the original variable star survey by Baade & Swope, includes photometry for 270 RR Lyrae stars, 9 anomalous Cephei
Externí odkaz:
http://arxiv.org/abs/0808.2542
Autor:
Dahn, C. C., Harris, H. C., Levine, S. E., Tilleman, T., Monet, A. K. B., Stone, R. C., Guetter, H. H., Canzian, B., Pier, J. R., Hartkopf, W. I., Liebert, J., Cushing, M.
Trigonometric parallax astrometry and BVI photometry are presented for two late-type subdwarf candidates, LSR1425+71 (sdM8.0) and LSR1610-00 (sd?M6pec). For the former we measure an absolute parallax of 13.37+/-0.51 mas yielding Mv=15.25+/-0.09. The
Externí odkaz:
http://arxiv.org/abs/0806.2336
Autor:
Harris, H. C., Gates, E., Gyuk, G., Subbarao, M., Anderson, S. F., Hall, P. B., Munn, J. A., Liebert, J., Knapp, G. R., Bizyaev, D., Malanushenko, E., Malanushenko, V., Pan, K., Schneider, D. P., Smith, J. A.
Publikováno v:
Astrophys.J.679:697-703,2008
We identify seven new ultracool white dwarfs discovered in the Sloan Digital Sky Survey (SDSS). The SDSS photometry, spectra, and proper motions are presented, and additional BVRI data are given for these and other previously discovered ultracool whi
Externí odkaz:
http://arxiv.org/abs/0804.3810
Autor:
Vidrih, S., Bramich, D. M., Hewett, P. C., Evans, N. W., Gilmore, G., Hodgkin, S., Smith, M., Wyrzykowski, L., Belokurov, V., Fellhauer, M., Irwin, M. J., McMahon, R. G., Zucker, D., Munn, J. A., Lin, H., Miknaitis, G., Harris, H. C., Lupton, R. H., Schneider, D. P.
Publikováno v:
Mon.Not.Roy.Astron.Soc.382:515-525,2007
A 2.5 x 100 degree region along the celestial equator (Stripe 82) has been imaged repeatedly from 1998 to 2005 by the Sloan Digital Sky Survey. A new catalogue of ~4 million light-motion curves, together with over 200 derived statistical quantities,
Externí odkaz:
http://arxiv.org/abs/0709.1131
We report a late M-type, common proper motion companion to a nearby young visual binary HIP 115147 (V368 Cep), separated by 963 arcseconds from the primary K0 dwarf. This optically dim star has been identified as a candidate high proper motion, nearb
Externí odkaz:
http://arxiv.org/abs/0709.0949
Autor:
Dufour, P., Bergeron, P., Liebert, James, Harris, H. C., Knapp, G. R., Hall, Patrick B., Strauss, Michael A., Collinge, Matthew J., Edwards, Matt C.
Publikováno v:
Astrophys.J.663:1291-1308,2007
We present a detailed analysis of a large spectroscopic and photometric sample of DZ white dwarfs based on our latest model atmosphere calculations. We revise the atmospheric parameters of the trigonometric parallax sample of Bergeron, Leggett, & Rui
Externí odkaz:
http://arxiv.org/abs/astro-ph/0703758
Autor:
Dufour, P., Bergeron, P., Schmidt, G. D., Liebert, James, Harris, H. C., Knapp, G. R., Anderson, S. F., Schneider, D. P.
Publikováno v:
Astrophys.J.651:1112-1119,2006
A reanalysis of the strongly metal-blanketed DZ white dwarf G165-7 is presented. An improved grid of model atmospheres and synthetic spectra is used to analyze BVRI, JHK, and ugriz photometric observations as well as a high quality Sloan Digital Sky
Externí odkaz:
http://arxiv.org/abs/astro-ph/0608065
Autor:
Piatek, S., Pryor, C., Bristow, P., Olszewski, E. W., Harris, H. C., Mateo, M., Minniti, D., Tinney, C. G.
Publikováno v:
Astron.J.133:818-844,2007; Astron.J.131:1445-1460,2006
This article presents a measurement of the proper motion of the Sculptor dwarf spheroidal galaxy determined from images taken with the Hubble Space Telescope using the Space Telescope Imaging Spectrograph in the imaging mode.
Comment: 38 pages,
Comment: 38 pages,
Externí odkaz:
http://arxiv.org/abs/astro-ph/0601547