Search Publications
Missions
Journals
Publication Years
System Parameters of the Transiting Extrasolar Planet HD 209458b
Henry, Gregory W.; Butler, R. P.; Wittenmyer, Robert A. +10 more
We derive improved system parameters for the HD 209458 system using a model that simultaneously fits both photometric transit and radial velocity observations. The photometry consists of previous Hubble Space Telescope STIS and FGS observations, 12 I-band transits observed between 2001 and 2003 with the Mount Laguna Observatory 1 m telescope, and …
A New Variety of Coronal Mass Ejection: Streamer Puffs from Compact Ejective Flares
Bemporad, A.; Poletto, G.; Moore, Ronald L. +1 more
We report on SOHO UVCS, LASCO, EIT, and MDI observations of a series of narrow ejections that occurred at the solar limb. These ejections originated from homologous compact flares whose source was an island of included polarity located just inside the base of a coronal streamer. Some of these ejections result in narrow CMEs (``streamer puffs'') th…
FUSE Measurements of Far-Ultraviolet Extinction. II. Magellanic Cloud Sight Lines
Martin, P. G.; Gordon, Karl D.; Sofia, Ulysses J. +8 more
We present an extinction analysis of nine reddened/comparison star pairs in the Large and Small Magellanic Clouds (LMC and SMC) based on Far-Ultraviolet Spectroscopic Explorer (FUSE) FUV observations. To date, just two LMC sight lines have probed dust grain composition and size distributions in the Magellanic Clouds using spectral data for wavelen…
The Atmospheres of Saturn and Titan in the Near-Infrared First Results of Cassini/vims
Sotin, C.; Brown, R. H.; Baines, K. H. +21 more
The wide spectral coverage and extensive spatial, temporal, and phase-angle mapping capabilities of the Visual Infrared Mapping Spectrometer (VIMS) onboard the Cassini-Huygens Orbiter are producing fundamental new insights into the nature of the atmospheres of Saturn and Titan. For both bodies, VIMS maps over time and solar phase angles provide in…
X-Ray Observations of the Black Hole Transient 4U 1630-47 during 2 Years of X-Ray Activity
Kaaret, Philip; Goldwurm, Andrea; Tomsick, John A. +1 more
The black hole candidate (BHC) X-ray transient 4U 1630-47 continuously produced strong X-ray emission for more than 2 years during its 2002-2004 outburst, which is one of the brightest and longest outbursts ever seen from this source. We use more than 300 observations made with the Rossi X-Ray Timing Explorer (RXTE) to study the source throughout …
Thermal infrared (8 13 µm) spectra of 29 asteroids: the Cornell Mid-Infrared Asteroid Spectroscopy (MIDAS) Survey
Bell, James F.; Hayward, Thomas L.; Lim, Lucy F. +1 more
We report the results of the Cornell Mid-IR Asteroid Spectroscopy (MIDAS) survey, a program of ground-based observations designed to characterize the 8-13 µm spectral properties of a statistically significant sample of asteroids from a wide variety of visible to near-IR spectral classes. MIDAS is conducted at Palomar Observatory using the Sp…
Abundances and chemical stratification analysis in the atmosphere of Cr-type Ap star HD 204411
Ryabchikova, T.; Leone, F.; Kochukhov, O.
We present results of an abundance and stratification analysis of the weakly magnetic chemically peculiar star HD 204411 based on the echelle spectrum obtained with the high resolution spectrograph at the 3.55-m Telescopio Nazionale Galileo at the Observatorio del Roque de los Muchachos (La Palma, Spain). Atmospheric parameters obtained from the s…
RX J0152.7-1357: Stellar Populations in an X-Ray Luminous Galaxy Cluster at z = 0.83
Crampton, David; Jørgensen, Inger; Takamiya, Marianne +3 more
We present a study of the stellar populations of galaxies in the cluster RX J0152.7-1357 at a redshift of 0.83. The study is based on new high signal-to-noise ratio spectroscopy of 29 cluster members covering the wavelength range 5000-10000 Å, as well as r'i'z' photometry of the cluster. We use scaling relations be…
Far-Infrared Observations of Radio Quasars and FR II Radio Galaxies
Egami, E.; Gordon, K. D.; Rieke, G. H. +6 more
We report MIPS photometry of 20 radio-loud quasars and galaxies at 24 and 70 µm (and of five at 160 µm). We combine this sample with additional sources detected in the far-infrared by IRAS and ISO for a total of 47 objects, including 23 steep-spectrum type I AGNs: radio-loud quasars and broad-line radio galaxies; and 24 type II AGNs: n…
Coronagraphic Imaging of Pre-Main-Sequence Stars with the Hubble Space Telescope Space Telescope Imaging Spectrograph. I. The Herbig Ae Stars
Roberge, A.; Gull, T. R.; Sitko, M. L. +10 more
STIS white-light coronagraphic imaging has been carried out for 14 nearby, lightly reddened Herbig Ae stars, providing data on the environments and disks associated with these stars. No disks are detected in our data when the Herbig Ae star is accompanied by a stellar companion at r<=2''. We find that the optical visibility of protop…