scholarly journals Photometry using the Infrared Array Camera on theSpitzer Space Telescope

2008 ◽  
Vol 120 (873) ◽  
pp. 1233-1243 ◽  
Author(s):  
Joseph L. Hora ◽  
Sean Carey ◽  
Jason Surace ◽  
Massimo Marengo ◽  
Patrick Lowrance ◽  
...  
Keyword(s):  
Space Telescope ◽  
Array Camera ◽  
Infrared Array

scholarly journals The Infrared Array Camera (IRAC) for the Spitzer Space Telescope

2004 ◽  
Vol 154 (1) ◽  
pp. 10-17 ◽  
Author(s):  
G. G. Fazio ◽  
J. L. Hora ◽  
L. E. Allen ◽  
M. L. N. Ashby ◽  
P. Barmby ◽  
...  
Keyword(s):  
Spitzer Space Telescope ◽  
Space Telescope ◽  
Array Camera ◽  
Infrared Array

scholarly journals Detection of Planetary Emission from TrES-2 using Spitzer/IRAC

2008 ◽  
Vol 4 (S253) ◽  
pp. 536-539
Author(s):  
Francis T. O'Donovan ◽  
David Charbonneau ◽  
Joseph Harrington ◽  
Sara Seager ◽  
Drake Deming ◽  
...  
Keyword(s):  
Thermal Energy ◽  
Circular Orbit ◽  
Temperature Inversion ◽  
Orbital Eccentricity ◽  
Spitzer Space Telescope ◽  
Tidal Dissipation ◽  
Space Telescope ◽  
Gas Giant ◽  
Array Camera ◽  
Infrared Array

AbstractWe present here results from observations of TrES-2 made using the Infrared Array Camera on the Spitzer Space Telescope. We monitored this transiting system during two secondary eclipses, when the planetary emission is blocked by the star. The resulting decrease in flux is 0.135 ± 0.036%, 0.245 ± 0.027%, 0.162 ± 0.064%, and 0.295 ± 0.066%, at 3.6-μm, 4.5-μm, 5.8-μm, and 8.0-μm, respectively. We find evidence for a temperature inversion in the atmosphere of TrES-2, which is predicted by Fortney and collaborators based on the proposed importance of TiO and VO opacities for this highly irradiated gas giant. We also find the time of the center of the eclipse to be consistent with predictions from transit timing observations of TrES-2. This implies that TrES-2 most likely has a circular orbit, and thus does not obtain additional thermal energy from tidal dissipation of a non-zero orbital eccentricity, a proposed explanation of the large planetary radius.

scholarly journals Observing with the infrared array camera (IRAC) on the Spitzer Space Telescope

2004 ◽  
Author(s):  
Sean J. Carey ◽  
Mark D. Lacy ◽  
Seppo J. Laine ◽  
William T. Reach ◽  
Jason A. Surace ◽  
...  
Keyword(s):  
Spitzer Space Telescope ◽  
Space Telescope ◽  
Array Camera ◽  
Infrared Array

scholarly journals Absolute Calibration of the Infrared Array Camera on theSpitzer Space Telescope

2005 ◽  
Vol 117 (835) ◽  
pp. 978-990 ◽  
Author(s):  
William T. Reach ◽  
S. T. Megeath ◽  
Martin Cohen ◽  
J. Hora ◽  
Sean Carey ◽  
...  
Keyword(s):  
Absolute Calibration ◽  
Space Telescope ◽  
Array Camera ◽  
Infrared Array

scholarly journals Galaxy Stellar Mass Functions from z ∼ 10 to z ∼ 6 using the Deepest Spitzer/Infrared Array Camera Data: No Significant Evolution in the Stellar-to-halo Mass Ratio of Galaxies in the First Gigayear of Cosmic Time

2021 ◽  
Vol 922 (1) ◽  
pp. 29
Author(s):  
Mauro Stefanon ◽  
Rychard J. Bouwens ◽  
Ivo Labbé ◽  
Garth D. Illingworth ◽  
Valentino Gonzalez ◽  
...  
Keyword(s):  
Star Formation ◽  
Near Infrared ◽  
Mass Density ◽  
Formation Rate ◽  
Stellar Mass ◽  
Wide Area ◽  
Space Telescope ◽  
Mass Functions ◽  
Array Camera ◽  
Infrared Array

Abstract We present new stellar mass functions at z ∼ 6, z ∼ 7, z ∼ 8, z ∼ 9 and, for the first time, z ∼ 10, constructed from ∼800 Lyman-break galaxies previously identified over the eXtreme Deep Field and Hubble Ultra-Deep Field parallel fields and the five Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey fields. Our study is distinctive due to (1) the much deeper (∼200 hr) wide-area Spitzer/Infrared Array Camera (IRAC) imaging at 3.6 μm and 4.5 μm from the Great Observatories Origins Deep Survey Re-ionization Era Wide-area Treasury from Spitzer program (GREATS) and (2) consideration of z ∼ 6–10 sources over a 3× larger area than those of previous Hubble Space Telescope+Spitzer studies. The Spitzer/IRAC data enable ≥2σ rest-frame optical detections for an unprecedented 50% of galaxies down to a stellar mass limit of ∼ 10 8  ⊙ across all redshifts. Schechter fits to our volume densities suggest a combined evolution in the characteristic mass  * and normalization factor ϕ * between z ∼ 6 and z ∼ 8. The stellar mass density (SMD) increases by ∼1000× in the ∼500 Myr between z ∼ 10 and z ∼ 6, with indications of a steeper evolution between z ∼ 10 and z ∼ 8, similar to the previously reported trend of the star formation rate density. Strikingly, abundance matching to the Bolshoi–Planck simulation indicates halo mass densities evolving at approximately the same rate as the SMD between z ∼ 10 and z ∼ 4. Our results show that the stellar-to-halo mass ratios, a proxy for the star formation efficiency, do not change significantly over the huge stellar mass buildup occurred from z ∼ 10 to z ∼ 6, indicating that the assembly of stellar mass closely mirrors the buildup in halo mass in the first ∼1 Gyr of cosmic history. The James Webb Space Telescope is poised to extend these results into the “first galaxy” epoch at z ≳ 10.

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