Extragalactic abstracts - IRSA - California Institute of Technology

Spitzer_Approved_Extragalactic
Mar 25, 10 16:24 Page 115/742
Spitzer Space Telescope − Directors Discretionary Time Proposal #482
IRS−LL Observation of the WISE Calibrator NGC 6552
Principal Investigator: Thomas Jarrett
Institution: IPAC/Caltech
Technical Contact: Thomas Jarrett, IPAC/Caltech
Co−Investigators:
Martin Cohen, UC Berkeley
Peter Eisenhardt, JPL
Amy Mainzer, JPL
Science Category: nearby galaxies
Observing Modes: IrsStare
Hours Approved: 0.5
Abstract:
The Wide−field Infrared Survey Explorer (WISE) will survey the entire sky at
3/4/12/23 micron bands down to depths of 0.1/0.2/0.7/3 mJy (5 sigma). The WISE
science team requests Spitzer DDT to measure the 15−35 micron spectrum of the
WISE flux calibrator NGC 6552. The purpose is to spectrally match the WISE 23
micron measurement with the MIPS 24 micron measurement that has already been
acquired in a previous set of observations. With IRS LL observations providing
the necessary mid−infrared spectral information of NGC 6552, it will then be
possible to construct an absolute flux calibration scale for the longest
wavelength measurements of WISE.
Spitzer_Approved_Extragalactic
Printed_by_SSC
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Spitzer Space Telescope − General Observer Proposal #30483
Environmental Effects on PAHs and VSGs in X−ray−bright Dusty Elliptical Galaxies
Principal Investigator: Hidehiro Kaneda
Institution: Japan Aerospace Exploration Agency
Technical Contact: Hidehiro Kaneda, Japan Aerospace Exploration Agency
Co−Investigators:
Takashi Onaka, University of Tokyo
Yoko Okada, University of Tokyo
Yuka Tajiri, University of Tokyo
Itsuki Sakon, University of Tokyo
Tetsu Kitayama, Toho University
Science Category: nearby galaxies (z