IPHAS A-type Stars with Mid-IR Excesses in Spitzer Surveys
نویسندگان
چکیده
منابع مشابه
Planets and Infrared Excesses: Preliminary Results from a Spitzer Mips Survey of Solar-type Stars
As part of a large SpitzerMIPS Guaranteed Time Observation program, we have searched for infrared excesses due to debris disks toward 26 FGK field stars known from radial velocity (RV) studies to have one or more planets. While none of these stars show excesses at 24 m, we have detected 70 m excesses around six stars at the 3 confidence level. The excesses are produced by cool material (<100 K)...
متن کاملNear - IR spectra of IPHAS extremely red Galactic AGB stars
We present a library of 139 near-IR spectra of cool asymptotic giant branch stars that will be useful for comparison with theoretical model atmosphere calculations and for modeling the integrated emission from intermediate-age stellar populations. The source list was selected from the “extremely red” region of the INT Photometric Hα Survey (IPHAS) colour-colour plane that is overwhelmingly domi...
متن کاملMID - IR Surveys - The Next Generations
Using new cosmological models for galaxy evolution, predictions for the next generation of deep mid-IR surveys are presented for both the ASTRO-F space telescope (due for launch 2003) and the proposed HII/L2 mission (2010). Although ASTRO-F will be able to detect between 20,000-40,000 sources in the mid-IR, deep surveys will be severely constrained by confusion due to faint sources (due to the ...
متن کاملSimulating the Spitzer mid-IR color-color diagrams
We use a simple parameterization of the mid-IR spectra of a wide range of galaxy types in order to predict their distribution in the Infrared Array Camera (IRAC) 3.6μm, 4.5μm, 5.8μm, and 8.0μm and Multiband Photometer for Spitzer (MIPS) 24μm color-color diagrams. We distinguish three basic spectral types by the energetically dominant component in the 3–12μm regime: stellardominated; PAH-dominat...
متن کاملSpitzer Space Telescope Mid-ir Light Curves of Neptune
We have used the Spitzer Space Telescope in February 2016 to obtain high cadence, high signal-tonoise, 17-hour duration light curves of Neptune at 3.6 and 4.5 μm. The light curve duration was chosen to correspond to the rotation period of Neptune. Both light curves are slowly varying with time, with full amplitudes of 1.1 mag at 3.6 μm and 0.6 mag at 4.5 μm. We have also extracted sparsely samp...
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: Proceedings of the International Astronomical Union
سال: 2009
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921310011932