Results 81 to 90 of about 431,109 (228)
We present a near-complete catalog of the metal-rich population of thermally pulsing asymptotic giant branch (AGB) stars in the northwest quadrant of M31.
Steven R. Goldman+7 more
doaj +1 more source
Explosion of Comet 17P/Holmes as revealed by the Spitzer Space Telescope [PDF]
51 pages. Some figures compressed (see real journal for full quality).
Reach, William T.+4 more
openaire +6 more sources
Detecting Clusters of Galaxies at High Redshift with the Spitzer Space Telescope [PDF]
We present an infrared adaptation of the Cluster Red-Sequence method. We modify the two filter technique of Gladders & Yee (2000) to identify clusters based on their R-[3.6] color. We apply the technique to the 4 degree^2 Spitzer First Look Survey and detect 123 clusters spanning the redshift range 0.09 < z < 1.4.
arxiv
Spitzer Observations of Planetary Nebulae [PDF]
The Spitzer Space Telescope has three science instruments (IRAC, MIPS, and IRS) that can take images at 3.6, 4.5, 5.8, 8.0, 24, 70, and 160 microns, spectra over 5--38 microns, and spectral energy distribution over 52--100 microns. The Spitzer archive contains targeted imaging observations for more than 100 PNe. Spitzer legacy surveys, particularly the
arxiv +1 more source
Observations of Extrasolar Planets During the non-Cryogenic Spitzer Space Telescope Mission [PDF]
Precision infrared photometry from Spitzer has enabled the first direct studies of light from extrasolar planets, via observations at secondary eclipse in transiting systems. Current Spitzer results include the first longitudinal temperature map of an extrasolar planet, and the first spectra of their atmospheres. Spitzer has also measured a temperature
arxiv +1 more source
Novel Image State Ensemble Decomposition Method for M87 Imaging
This paper proposes a new method of image decomposition with a filtering capability. The image state ensemble decomposition (ISED) method has generative capabilities that work by removing a discrete ensemble of quanta from an image to provide a range of ...
Timothy Ryan Taylor+2 more
doaj +1 more source
We combine James Webb Space Telescope (JWST) and Hubble Space Telescope imaging with Atacama Large Millimeter Array CO(2–1) spectroscopy to study the highly turbulent multiphase intergalactic medium (IGM) in Stephan’s Quintet on 25–150 pc scales ...
P. N. Appleton+14 more
doaj +1 more source
The Supernova Legacy of Spitzer Space Telescope
The mid-infrared (mid-IR) range offers an obvious and advantageous choice in following the late-time evolution of supernovae (SNe). First, the peaks of their spectral energy distributions (SED) shift toward the IR after the photospheric phase; second, mid-IR observations are practically free of interstellar extinction, which is also an important factor
openaire +3 more sources
A Search for a Sub-Earth Sized Companion to GJ 436 and a Novel Method to Calibrate Warm Spitzer IRAC Observations [PDF]
We discovered evidence for a possible additional 0.75 R_Earth transiting planet in the NASA EPOXI observations of the known M dwarf exoplanetary system GJ 436. Based on an ephemeris determined from the EPOXI data, we predicted a transit event in an extant Spitzer Space Telescope 8 micron data set of this star.
arxiv +1 more source
We report on the discovery of a very prominent mid-infrared (18–25 μ m) excess associated with the trans-Neptunian dwarf planet (136472) Makemake. The excess, detected by the Mid-Infrared Instrument of the James Webb Space Telescope, along with previous ...
Csaba Kiss+20 more
doaj +1 more source