Mapping Warm Molecular Hydrogen with theSpitzerInfrared Array Camera (IRAC)
نویسندگان
چکیده
منابع مشابه
Mapping warm molecular hydrogen with Spitzer’s Infrared Array Camera (IRAC)
Photometric maps, obtained with Spitzer’s Infrared Array Camera (IRAC), can provide a valuable probe of warm molecular hydrogen within the interstellar medium. IRAC maps of the supernova remnant IC443, extracted from the Spitzer archive, are strikingly similar to spectral line maps of the H2 pure rotational transitions that we obtained with the Infrared Spectrograph (IRS) instrument on Spitzer....
متن کاملInfrared Array Camera (irac) Colors of Young Stellar Objects
We compare the infrared colors predicted by theoretical models of protostellar envelopes and protoplanetary disks with initial observations of young stellar objects made with the Infrared Array Camera ( IRAC) on the Spitzer Space Telescope. Disk and envelope models characterized by infall and/or accretion rates found in previous studies can quantitatively account for the range of IRAC colors fo...
متن کاملInfrared Array Camera (irac) Imaging of the Lockman Hole
IRAC imaging of a 4A7 ; 4A7 area in the Lockman Hole detected over 400 galaxies in the IRAC 3.6 and 4.5 m bands, 120 in the 5.8 m band, and 80 in the 8.0 m band in 30 minutes of observing time. Color-color diagrams suggest that about half of these galaxies are at redshifts 0:6 < z < 1:3 with about a quarter at higher redshifts (z > 1:3). We also detect IRAC counterparts for six of the seven SCU...
متن کاملIntra-Pixel Gain Variations and High-Precision Photometry with the Infrared Array Camera (IRAC)
The Infrared Array Camera (IRAC) on the Spitzer Space Telescope has been used to measure < 10−4 temporal variations in point sources (such as transiting extrasolar planets) at 3.6 and 4.5μm. Due to the under-sampled nature of the PSF, the warm IRAC arrays show variations of as much as 8% in sensitivity as the center of the PSF moves across a pixel due to normal spacecraft pointing wobble and dr...
متن کاملThe Infrared Array Camera (IRAC) for the Space Infrared Telescope Facility (SIRTF)
The Space Infrared Telescope Facility (SIRTF) contains three focal plane instruments, one of which is the Infrared Array Camera (IRAC). IRAC is a four-channel camera that provides simultaneous 5.12 × 5.12 arcmin images at 3.6, 4.5, 5.8, and 8 microns. The pixel size is 1.2 arcsec in all bands. Two adjacent fields of view in the SIRTF focal plane are viewed by the four channels in pairs (3.6 and...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2008
ISSN: 0004-637X,1538-4357
DOI: 10.1086/529512