A BRIGHT SUBMILLIMETER SOURCE IN THE BULLET CLUSTER (1E0657-56) FIELD DETECTED WITH BLAST
A BRIGHT SUBMILLIMETER SOURCE IN THE BULLET CLUSTER (1E0657-56) FIELD DETECTED WITH BLAST
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通过爆炸检测到子弹簇 (1E0657-56) 场中的明亮亚毫米级光源
DOI：
10.1088/0004-637x/703/1/348
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
D. Wiebe
中科院分区：
文献类型：
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作者：
M. Rex;P. Ade;I. Aretxaga;J. Bock;E. Chapin;M. Devlin;S. Dicker;M. Griffin;J. Gundersen;M. Halpern;P. Hargrave;D. Hughes;J. Klein;G. Marsden;P. Martin;P. Mauskopf;A. Montaña;C. Netterfield;L. Olmi;E. Pascale;G. Patanchon;D. Scott;C. Semisch;N. Thomas;M. Truch;C. Tucker;G. Tucker;M. Viero;D. Wiebe
本文介绍了利用星载大口径亚毫米波望远镜（BLAST）在250、350和500 μm波段观测到的子弹团方向的亮亚毫米波辐射。500 μm质心与阿兹特克1.1 mm点源探测器在靠近由群集产生的峰值透镜放大率的位置处重合。然而，250 μm和350 μm的质心被拉长并向南移动，带之间的差异移动不能用指向不确定性来解释。因此，我们的结论是，BLAST检测可能是污染的发射与子弹星系团的前景星系。在阿兹特克源的位置，基于250-1100 μm测光的亚毫米红移估计为zphot = 2.9+0.6−0.3，与最有可能的红外线阵列相机对应物的红外色红移估计一致。这些通量密度表明远红外（FIR）光度为LFIR = 2 × 1013 L。当由于星系团的引力透镜效应的放大被移除时，源的本征远红外光度被发现是LFIR <$1012 L返，与典型的亮红外星系一致。
We present the 250, 350, and 500 μm detection of bright submillimeter emission in the direction of the Bullet Cluster measured by the Balloon-borne Large-Aperture Submillimeter Telescope (BLAST). The 500 μm centroid is coincident with an AzTEC 1.1 mm point-source detection at a position close to the peak lensing magnification produced by the cluster. However, the 250 μm and 350 μm centroids are elongated and shifted toward the south with a differential shift between bands that cannot be explained by pointing uncertainties. We therefore conclude that the BLAST detection is likely contaminated by emission from foreground galaxies associated with the Bullet Cluster. The submillimeter redshift estimate based on 250–1100 μm photometry at the position of the AzTEC source is zphot = 2.9+0.6−0.3, consistent with the infrared color redshift estimation of the most likely Infrared Array Camera counterpart. These flux densities indicate an apparent far-infrared (FIR) luminosity of LFIR = 2 × 1013 L☉. When the amplification due to the gravitational lensing of the cluster is removed, the intrinsic FIR luminosity of the source is found to be LFIR ⩽ 1012 L☉, consistent with typical luminous infrared galaxies.
DOI：
10.1086/520511
发表时间：
2007-09
期刊：
The Astrophysical Journal Supplement Series
影响因子：
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作者：
F. Bertoldi;C. Carilli;M. Aravena;E. Schinnerer;H. Voss;V. Smolčić;K. Jahnke;N. Scoville;A. Blain;K. Menten;D. Lutz;M. Brusa;Y. Taniguchi;P. Capak;B. Mobasher;S. Lilly;D. Thompson;H. Aussel;E. Kreysa;G. Hasinger;James E. Aguirre;J. Schlaerth;A. Koekemoer
通讯作者：
F. Bertoldi;C. Carilli;M. Aravena;E. Schinnerer;H. Voss;V. Smolčić;K. Jahnke;N. Scoville;A. Blain;K. Menten;D. Lutz;M. Brusa;Y. Taniguchi;P. Capak;B. Mobasher;S. Lilly;D. Thompson;H. Aussel;E. Kreysa;G. Hasinger;James E. Aguirre;J. Schlaerth;A. Koekemoer