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The galactic first-look survey with the Spitzer space telescope

Burgdorf, Martin J. and Cohen, Martin and Ingalls, James G. and Ramirez, S. and Rho, Jeonghee and Stolovy, S. R. and Carey, Sean J. and Fajardo-Acosta, S. B. and Glaccum, W. J. and Helou, G. and Hoard, D. W. and Karr, J. and Lowrance, P. J. and O'Linger, J. and Padgett, Deborah L. and Reach, W. T. and Rebull, L. M. and Stauffer, John R. and Wachter, S. (2005) The galactic first-look survey with the Spitzer space telescope. Advances in Space Research, 36 (6). pp. 1050-1056. ISSN 0273-1177.

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The galactic first look survey (GFLS) of the Spitzer space telescope was executed during 1–11 December 2003 as one of the first science observations during nominal operations. The aim of the FLS is to provide a characteristic “first-look” at the mid-and far-infrared sky at sensitivities that allow the detection of point sources ≈100 times fainter than those in previous systematic large-area surveys. The whole program took 35.5 h to complete and consisted of the following elements: •Galactic longitudinal strips of size 15′ × 1° with IRAC and MIPS at l = 105.6° and 254.4° and various galactic latitudes. •10′ × 10′ IRAC maps at l = 97.5° and b = 0°, ±4°, and +16°. •Coverage of L1228 with 2° scan maps. Even at these large distances from the galactic center, confusion sets a limit to the detection of point sources in the galactic plane for IRAC channel 1 (3.6 μm) at 100 μJy ≈ 16.1^m. As positive galactic latitudes were mainly sampled at l = 97.5° and 105.6° and negative latitudes at 254.4° galactic longitude, the observations are well suited to derive information on the warp of the galactic disk. In order to reproduce the source counts from the GFLS we had to assume an amplitude of the warp within 20% of that derived from 2MASS. The whole survey is included in the Spitzer science archive which opened in April 2004.

Item Type:Article
Related URLs:
URLURL TypeDescription
Ingalls, James G.0000-0003-4714-1364
Rho, Jeonghee0000-0003-3643-839X
Carey, Sean J.0000-0002-0221-6871
Fajardo-Acosta, S. B.0000-0001-9309-0102
Helou, G.0000-0003-3367-3415
Hoard, D. W.0000-0002-6800-6519
Lowrance, P. J.0000-0001-8014-0270
Padgett, Deborah L.0000-0001-5334-5107
Reach, W. T.0000-0001-8362-4094
Rebull, L. M.0000-0001-6381-515X
Stauffer, John R.0000-0003-3595-7382
Additional Information:© 2005 COSPAR Published by Elsevier Ltd. Received 1 October 2004; received in revised form 11 May 2005; accepted 18 May 2005. Available online 6 July 2005. We thank A. Noriega-Crespo for useful conversations.
Group:Infrared Processing and Analysis Center (IPAC)
Subject Keywords:Milky Way; IR; Spitzer; Surveys
Issue or Number:6
Record Number:CaltechAUTHORS:20150916-094156500
Persistent URL:
Official Citation:Martin J. Burgdorf, Martin Cohen, James G. Ingalls, S. Ramirez, Jeonghee Rho, S.R. Stolovy, Sean J. Carey, S.B. Fajardo-Acosta, W.J. Glaccum, G. Helou, D.W. Hoard, J. Karr, P.J. Lowrance, J. O’Linger, Deborah L. Padgett, W.T. Reach, L.M. Rebull, John R. Stauffer, S. Wachter, The galactic first-look survey with the Spitzer space telescope, Advances in Space Research, Volume 36, Issue 6, 2005, Pages 1050-1056, ISSN 0273-1177, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:60274
Deposited By: Ruth Sustaita
Deposited On:17 Sep 2015 00:11
Last Modified:14 Nov 2019 23:57

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