منابع مشابه
The Chandra Deep Field-south Survey: 2 Ms Source Catalogs
We present point-source catalogs for the ≈ 2 Ms exposure of the Chandra Deep Field-South (CDF-S); this is one of the two most-sensitive X-ray surveys ever performed. The survey covers an area of ≈ 436 arcmin2 and reaches on-axis sensitivity limits of ≈ 1.9× 10−17 and ≈ 1.3× 10−16 ergs cm−2 s−1 for the 0.5–2.0 and 2–8 keV bands, respectively. Four hundred and sixty-two X-ray point sources are de...
متن کاملmetallicity of starburst galaxies in chandra deep field south (cdf-s) , at 0.5
چکیده یکی از پارامترهای اصلی در دنبال کردن تاریخچه ی تشکیل ستاره ها و تحول کهکشان ها، مطالعه ی میزان فراوانی عناصر آن ها است. در این پایان نامه برای مطالعه ی همبستگی میان فراوانی فلزی و جرم ستاره ای کهکشان ها، از داده های طیفی 89 کهکشانِ ستاره زا استفاده شده است. طیف ها توسط طیف نگار فورس2 از میدان ژرف جنوبی چاندرا گرفته شده و جابه جایی به سرخ طیف ها همه بزرگتر از نیم و کوچکتر از یک هستند. جر...
15 صفحه اولTHE NuSTAR EXTRAGALACTIC SURVEYS: INITIAL RESULTS AND CATALOG FROM THE EXTENDED CHANDRA DEEP FIELD SOUTH
We present initial results and the source catalog from the NuSTAR survey of the Extended Chandra Deep Field South (hereafter, ECDFS) – currently the deepest contiguous component of the NuSTAR extragalactic survey program. The survey covers the full ≈30×30 area of this field to a maximum depth of ≈360 ks (≈ 220 ks when corrected for vignetting at 3-24 keV), reaching sensitivity limits of ≈ 1.3 ×...
متن کاملThe Extended Chandra Deep Field-South Survey: X-ray Point-Source Catalog
The Extended Chandra Deep Field-South (ECDFS) survey consists of 4 Chandra ACIS-I pointings and covers ≈ 1100 square arcminutes (≈ 0.3 deg) centered on the original CDF-S field to a depth of approximately 228 ks. This is the largest Chandra survey ever conducted at such depth, and only one XMMNewton survey reaches a lower flux limit in the hard 2.0–8.0 keV band. We detect 651 unique sources — 5...
متن کاملUnveiling Obscured Accretion in the Chandra Deep Field South
We make use of deep HST, VLT, Spitzer and Chandra data on the Chandra Deep Field South to constrain the number of Compton thick AGN in this field. We show that sources with high 24μm to optical flux ratios and red colors form a distinct source population, and that their infrared luminosity is dominated by AGN emission. Analysis of the X-ray properties of these extreme sources shows that most of...
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ژورنال
عنوان ژورنال: The Astrophysical Journal Supplement Series
سال: 2002
ISSN: 0067-0049,1538-4365
DOI: 10.1086/338927