Zobrazeno 1 - 10
of 19
pro vyhledávání: '"L. W. Ramsey"'
Autor:
S. K. Leggett, T. R. Geballe, Xiaohui Fan, Donald P. Schneider, James E. Gunn, Robert H. Lupton, G. R. Knapp, Michael A. Strauss, Alex McDaniel, David A. Golimowski, Todd J. Henry, Eric Peng, Zlatan I. Tsvetanov, Alan Uomoto, Wei Zheng, G. J. Hill, L. W. Ramsey, Scott F. Anderson, James A. Annis, Neta A. Bahcall, J. Brinkmann, Bing Chen, István Csabai, Masataka Fukugita, G. S. Hennessy, Robert B. Hindsley, Željko Ivezić, D. Q. Lamb, Jeffrey A. Munn, Jeffrey R. Pier, David J. Schlegel, J. Allyn Smith, Chris Stoughton, A. R. Thakar, Donald G. York
Publikováno v:
Scopus-Elsevier
We report the discovery of three cool brown dwarfs which fall in the effective temperature gap between the latest L dwarfs currently known, with no methane absorption bands in the 1-2.5um range, and the previously known methane (T) dwarfs, whose spec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76ec5465d8a1ae7f18dfa1d5d9408513
https://doi.org/10.1086/312728
https://doi.org/10.1086/312728
Autor:
D. P. Schneider, Gary J. Hill, X. Fan, L. W. Ramsey, P. J. MacQueen, D. W. Weedman, J. A. Booth, M. Eracleous, J. E. Gunn, R. H. Lupton, M. T. Adams, S. Bastian, R. Bender, E. Berman, J. Brinkmann, I. Csabai, G. Federwitz, V. Gurbani, G. S. Hennessy, G. M. Hill, R. B. Hindsley, Z. Ivezić, G. R. Knapp, D. Q. Lamb, C. Lindenmeyer, P. Mantsch, C. Nance, T. Nash, J. R. Pier, R. Rechenmacher, B. Rhoads, C. H. Rivetta, E. L. Robinson, B. Roman, G. Sergey, M. Shetrone, C. Stoughton, M. A. Strauss, G. P. Szokoly, D. L. Tucker, G. Wesley, J. Willick, P. Worthington, D. G. York
Publikováno v:
Publications of the Astronomical Society of the Pacific. 112:6-11
This paper describes spectra of quasar candidates acquired during the commissioning phase of the Low-Resolution Spectrograph of the Hobby-Eberly Telescope. The objects were identified as possible quasars from multicolor image data from the Sloan Digi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d80cc3ef78c4c3f9a4f49297a5e968a7
https://doi.org/10.1086/316491
https://doi.org/10.1086/316491
Publikováno v:
Highlights of Spanish Astrophysics III ISBN: 9789048163236
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1615afebb64c9e4be1b96f503fbaaf9d
https://doi.org/10.1007/978-94-017-1778-6_62
https://doi.org/10.1007/978-94-017-1778-6_62
Autor:
L. W. Ramsey, Gibor Basri, Thomas R. Ayres, George A. Doschek, Alexander Brown, Theodore Simon, Jay Bookbinder, R. A. Stern, John Stauffer, J. L. Linsky, F. M. Walter, Spiro K. Antiochos
Publikováno v:
The Astrophysical Journal. 420:L33
The Hubble Space Telescope/Faint Object Spectrograph (HST/FOS) recorded a remarkable transient brightening in the C IV lambda lambda 1548,50 emissions of the rapidly rotating Pleiades G dwarf H II 314. On the one hand the 'flare' might be a rare even
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a29e7b8f16b55bc5c78c1a4d26b1df3
https://doi.org/10.1086/187156
https://doi.org/10.1086/187156
Publikováno v:
Cool Stars, Stellar Systems, and the Sun ISBN: 9783540167631
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08d311e182de3d9b918f1b6361e176dc
https://doi.org/10.1007/3-540-16763-3_184
https://doi.org/10.1007/3-540-16763-3_184
Autor:
H. L. Nations, L. W. Ramsey
Publikováno v:
The Astronomical Journal. 85:1086
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d5dba13cfeb64e552ac9687fe84528a
https://doi.org/10.1086/112772
https://doi.org/10.1086/112772
Autor:
H. L. Nations, L. W. Ramsey
Publikováno v:
The Astronomical Journal. 86:433
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95bbc1f0dc36d8853940e7a5e306cb0a
https://doi.org/10.1086/112901
https://doi.org/10.1086/112901
Publikováno v:
The Astrophysical Journal. 187:147
Line profiles and equivalent widths were calculated for the 7774 A multiplet of O I for model atmospheres in the effective temperature range 6000-6500 K for surface gravities in the range log g = 4.0-1.0. A kinetic equilibrium treatment of line forma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3583b7365f36e2c1004bec32dd9e5b08
https://doi.org/10.1086/152600
https://doi.org/10.1086/152600
Autor:
L. W. Ramsey, H. L. Nations
Publikováno v:
The Astrophysical Journal. 239:L121
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a1bc0c6e20f2a77c9284a74c8c1ec2c
https://doi.org/10.1086/183306
https://doi.org/10.1086/183306
Autor:
L. W. Ramsey
Publikováno v:
Publications of the Astronomical Society of the Pacific. 91:252
High-dispersion echelle spectra taken of the metal-deficient red giant HDE 232078 indicate that the mass loss rate of this star is highly variable. The time scale of the variability and the rate of mass loss is similar to Population I objects of simi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fec55059a1ef134bfeea2e9de4d7ddc0
https://doi.org/10.1086/130479
https://doi.org/10.1086/130479