Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Christian B. Luginbuhl"'
Publikováno v:
The Astronomy and Astrophysics Review. 30
Human activity is rapidly increasing the negative impact of artificial skyglow at even the most remote professional observatory sites. Assessment of the actual impact requires an understanding of the propagation as a function of source spectral energ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b997f2062c73a14bbd56d2d62c55d70
https://doi.org/10.1007/s00159-021-00138-3
https://doi.org/10.1007/s00159-021-00138-3
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 214:133-145
We present a simplified method using geographic analysis tools to predict the average artificial luminance over the hemisphere of the night sky, expressed as a ratio to the natural condition. The VIIRS Day/Night Band upward radiance data from the Suo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b57491ba81b904e5c354aba5a796074a
https://doi.org/10.1016/j.jqsrt.2018.04.028
https://doi.org/10.1016/j.jqsrt.2018.04.028
Autor:
John P. Subasavage, Conard C. Dahn, Christian B. Luginbuhl, Harold D. Ables, Jeffrey R. Pier, Frederick J. Vrba, S. K. Leggett, Jeffrey A. Munn, Pierre Bergeron, Trudy Tilleman, Richard L. Walker, Arne H. Henden, Patrick Dufour, Ronald C. Stone, Alice K. B. Monet, Siyi Xu, Hugh C. Harris, Stephen E. Levine, Harry H. Guetter, B. Canzian, David G. Monet
This paper presents new trigonometric parallaxes and proper motions for 214 stars. The measurements were made at the US Naval Observatory Flagstaff Station (NOFS) between 1989 and 2017, and the average uncertainty in the parallax values is 0.6 mas. W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ceb05ccda537ca2d890f8c31f60b828
Publikováno v:
Physics Today. 62:32-37
The rapid growth of light pollution threatens the future of astronomical observation. Detailed modeling of how light from the ground propagates through the atmosphere suggests ways to limit the damage.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b8cc0442cffe8841b880d654e481af4
https://doi.org/10.1063/1.3273014
https://doi.org/10.1063/1.3273014
Publikováno v:
Publications of the Astronomical Society of the Pacific. 121:185-203
We develop an estimate of the complete outdoor lighting of Flagstaff Arizona, as well as lighting- use densities (lumens per acre) for a number of different land uses. We find a total outdoor light output of 173 million lumens (Mlm) including sports
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc94f94ac92419681f75820e4015eb3a
https://doi.org/10.1086/597625
https://doi.org/10.1086/597625
Autor:
Chadwick W. Moore, Christian B. Luginbuhl, G. Wesley Lockwood, Donald R. Davis, Dan M. Duriscoe, Angela M. Richman
Publikováno v:
Publications of the Astronomical Society of the Pacific. 121:204-212
We present panoramic sky brightness measures in the Johnson V band made at the US Naval Observatory Flagstaff Station. We find that these measures show much less sky glow from Flagstaff than expected using the total light output and unshielded fracti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ad2efe9662cda54b76801100fc3abc2
https://doi.org/10.1086/597626
https://doi.org/10.1086/597626
Autor:
Donald P. Schneider, S. K. Leggett, Harry H. Guetter, Gillian R. Knapp, Zlatan Tsvetanov, Karl Glazebrook, Thomas R. Geballe, Frederick J. Vrba, David A. Golimowski, Erik A. Hoversten, W. Zheng, B. Canzian, Arne Henden, Jon Brinkmann, Xiaohui Fan, Kuenley Chiu, Jeffrey A. Munn, Mark S. Marley, Christian B. Luginbuhl
Publikováno v:
The Astronomical Journal. 127:3516-3536
We have compiled L' and M' photometry of 63 single and binary M, L,and T dwarfs obtained at UKIRT using the MKO filter set. This compilation includes new L' data for 8 L dwarfs and 13 T dwarfs and new M' data for 7 L dwarfs, 5 T dwarfs, and Gl 229A.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c04fe191218a4facea890cd479d2cc65
https://doi.org/10.1086/420709
https://doi.org/10.1086/420709
Autor:
Alice K. B. Monet, Harold D. Ables, Harry H. Guetter, Conard C. Dahn, Blaise Canzian, Ronald C. Stone, Stephen E. Levine, Frederick H. Harris, Hugh C. Harris, Christian B. Luginbuhl, Jeffrey A. Munn, Frederick J. Vrba, David G. Monet, Richard L. Walker, Jeffrey R. Pier, Arne Henden
Publikováno v:
The Astronomical Journal. 126:2060-2080
The Flagstaff Astrometric Scanning Transit Telescope (FASTT) is a fully automated telescope that takes about 41,000 CCD frames of data a year for various research projects. All aspects of the telescope's operation have been automated (e.g., target se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fac1ca211362d55dbec4452894a5c18b
https://doi.org/10.1086/377622
https://doi.org/10.1086/377622
Publikováno v:
The Astronomical Journal. 125:3344-3348
We present a set of 58 stars with JHK standard values on the CIT system and with a suitable magnitude range for use with array detectors on small- to moderate-size telescopes. Each final value is based on six to 47 measures (with a mean of 17) obtain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b65e82311d1b19e2d598fb21dc421391
https://doi.org/10.1086/375305
https://doi.org/10.1086/375305
Autor:
Harry H. Guetter, Blaise Canzian, Christian B. Luginbuhl, Conard C. Dahn, I. Neill Reid, Alice K. B. Monet, Stephen E. Levine, David G. Monet, Kelle L. Cruz, Hugh C. Harris, Stephen P. Laurie, Ronald C. Stone, James Liebert
Publikováno v:
The Astronomical Journal. 125:354-358
We present observations of 2MASSI J1835379+325954, a previously unrecognized late-type M dwarf within 6 pc of the Sun. Identified based analysis of the Two Micron All Sky Survey optical spectroscopy and photometry indicate a spectral type of M8.5. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f36940911578a2013f79eb32f71b5c9
https://doi.org/10.1086/344946
https://doi.org/10.1086/344946