Zobrazeno 1 - 10
of 181
pro vyhledávání: '"U. Landolt"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 469:4116-4132
V1017 Sgr is a classical nova (in 1919) that displayed an earlier dwarf nova eruption (in 1901), and two more dwarf nova events (in 1973 and 1991). Previous work on this bright system in quiescence (V=13.5) has only been a few isolated magnitudes, a
Autor:
Arlo U. Landolt, James L. Clem
Publikováno v:
Publications of the Astronomical Society of the Pacific. 124:535-544
We present extensive time-series photometry confirming that two stars located in the field of PG 1047 + 003 are short-period eclipsing binary systems. One of these stars, published as a photometric standard by Landolt and designated as PG 1047 + 003C
Autor:
Arlo U. Landolt, James L. Clem
Publikováno v:
Publications of the Astronomical Society of the Pacific. 122:541-548
The star R CrB has been monitored at its faintest known minimum brightness in a search for possible light variations. No short-term variations were identified. In addition, UBVRI photometry is presented for stars in the surrounding neighborhood.
Autor:
Peter Martinez, Eugene F. Milone, Arlo U. Landolt, Carme Jordi, Aleksey V. Mironov, Shengbang Qian, Edward G. Schmidt, Christiaan L. Sterken
Publikováno v:
Proceedings of the International Astronomical Union. 4:304-312
According to the IAU membership database, Commission 25 currently has 230 members from 40 countries. The Commission's membership represents 2.4% of the total IAU membership of 9658.
Autor:
G. Schär, Ruedi Lüthy, C. Meyenberger, S. Schwery, M. Vogt, U. Landolt, C. Waller, P. Greminger, R. Huss, Walter Siegenthaler
Publikováno v:
DMW - Deutsche Medizinische Wochenschrift. 115:1353-1357
A 29-year-old man who had been abroad for several years (mainly Mexico) fell ill with fever (up to 39.8 degrees C), night sweats, weight loss of 10 kg in 6 months (height 181 cm, weight 50.5 kg) and abdominal pain. Computed tomography of the abdomen
Autor:
Arlo U. Landolt
Publikováno v:
The Astronomical Journal. 133:2502-2523
UBVRI photoelectric observations have been made of 109 stars around the sky, centered more or less at -50 degrees declination. The majority of the stars fall in the magnitude range 10.4 < V < 15.5 and in the color index range -0.33 < (B - V) < +1.66.
Autor:
Arlo U. Landolt, Alan Uomoto
Publikováno v:
The Astronomical Journal. 133:768-790
Photoelectric data on the Johnson-Kron-Cousins UBVRI broadband photometric system are provided for a set of stars which have been used as spectrophotometric standard stars at the Hubble Space Telescope.
Comment: 76 pages, 48 figures - published
Comment: 76 pages, 48 figures - published
Autor:
Arlo U. Landolt, Ralph C. Bohlin
Multicolor photometric data are presented for the CALSPEC stars P177D and P330E. Together with previously published photometry for nine other CALSPEC standards, the photometric observations and synthetic photometry from HST/STIS spectrophotometry agr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e57a6bcd1626cc14bf2ae4949dde268
Publikováno v:
The Astrophysical Journal. 594:279-293
We present an exhaustive, quantitative comparison of all of the known extinction curves in the Small and Large Magellanic Clouds (SMC and LMC) with our understanding of the general behavior of Milky Way extinction curves. The R_V dependent CCM relati
Autor:
Kevin Krisciunas, Arlo U. Landolt, Juan Espinoza, Mark M. Phillips, Sergio Gonzalez, Nicholas B. Suntzeff, Peter Hoeflich, Pablo Candia, Jose Arenas, David Gonzalez, Sergio Pizarro
Publikováno v:
The Astronomical Journal. 125:166-180
We present well sampled optical (UBVRI) and infrared (JHK) light curves of the nearby (~18.0 Mpc) Type Ia supernova SN 2001el, from 11 days before to 142 days after the time of B-band maximum. The data represent one of the best sets of optical and in