X-ray sources in the Hubble Deep Field detected by Chandra

A. E. Hornschemeier; W. N. Brandt; G. P. Garmire; D. P. Schneider; P. S. Broos; L. K. Townsley; M. W. Bautz; D. N. Burrows; G. Chartas; E. D. Feigelson; R. Griffiths; D. Lumb; J. A. Nousek; W. L.W. Sargent

doi:10.1086/309431

X-ray sources in the Hubble Deep Field detected by Chandra

A. E. Hornschemeier, W. N. Brandt, G. P. Garmire, D. P. Schneider, P. S. Broos, L. K. Townsley, M. W. Bautz, D. N. Burrows, G. Chartas, E. D. Feigelson, R. Griffiths, D. Lumb, J. A. Nousek, W. L.W. Sargent

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Abstract

We present first results from an X-ray study of the Hubble Deep Field North (HDF-N) and its environs obtained using 166 ks of data collected by the Advanced CCD Imaging Spectrometer (ACIS) on board the Chandra X-Ray Observatory. This is the deepest X-ray observation ever reported, and in the HDF-N itself we detect six X-ray sources down to a 0.5-8 keV flux limit of ≈4 × 10^-16 ergs cm^-2 s^-1. Comparing these sources with objects seen in multiwavelength HDF-N studies shows positional coincidences with the extremely red object NICMOS J123651.74 + 621221.4, an active galactic nucleus (AGN), three elliptical galaxies, and one nearby spiral galaxy. The X-ray emission from the ellipticals is consistent with that expected from a hot interstellar medium, and the spiral galaxy emission may arise from a "super-Eddington" X-ray binary or ultraluminous supernova remnant. Four of the X-ray sources have been detected at radio wavelengths. We also place X-ray upper limits on AGN candidates found in the HDF-N, and we present the tightest constraints yet on X-ray emission from the SCUBA submillimeter source population. None of the 10 high-significance submillimeter sources reported in the HDF-N and its vicinity is detected with the Chandra ACIS. These sources appear to be dominated by star formation or have AGNs with Compton-thick tori and little circumnuclear X-ray scattering.

Original language	English (US)
Pages (from-to)	49-53
Number of pages	5
Journal	Astrophysical Journal
Volume	541
Issue number	1 PART 1
DOIs	https://doi.org/10.1086/309431
State	Published - Sep 20 2000

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/309431

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@article{4a12b1255cbb4cc094da3095d9fdc240,

title = "X-ray sources in the Hubble Deep Field detected by Chandra",

abstract = "We present first results from an X-ray study of the Hubble Deep Field North (HDF-N) and its environs obtained using 166 ks of data collected by the Advanced CCD Imaging Spectrometer (ACIS) on board the Chandra X-Ray Observatory. This is the deepest X-ray observation ever reported, and in the HDF-N itself we detect six X-ray sources down to a 0.5-8 keV flux limit of ≈4 × 10-16 ergs cm-2 s-1. Comparing these sources with objects seen in multiwavelength HDF-N studies shows positional coincidences with the extremely red object NICMOS J123651.74 + 621221.4, an active galactic nucleus (AGN), three elliptical galaxies, and one nearby spiral galaxy. The X-ray emission from the ellipticals is consistent with that expected from a hot interstellar medium, and the spiral galaxy emission may arise from a {"}super-Eddington{"} X-ray binary or ultraluminous supernova remnant. Four of the X-ray sources have been detected at radio wavelengths. We also place X-ray upper limits on AGN candidates found in the HDF-N, and we present the tightest constraints yet on X-ray emission from the SCUBA submillimeter source population. None of the 10 high-significance submillimeter sources reported in the HDF-N and its vicinity is detected with the Chandra ACIS. These sources appear to be dominated by star formation or have AGNs with Compton-thick tori and little circumnuclear X-ray scattering.",

author = "Hornschemeier, {A. E.} and Brandt, {W. N.} and Garmire, {G. P.} and Schneider, {D. P.} and Broos, {P. S.} and Townsley, {L. K.} and Bautz, {M. W.} and Burrows, {D. N.} and G. Chartas and Feigelson, {E. D.} and R. Griffiths and D. Lumb and Nousek, {J. A.} and Sargent, {W. L.W.}",

year = "2000",

month = sep,

day = "20",

doi = "10.1086/309431",

language = "English (US)",

volume = "541",

pages = "49--53",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "1 PART 1",

}

TY - JOUR

T1 - X-ray sources in the Hubble Deep Field detected by Chandra

AU - Hornschemeier, A. E.

AU - Brandt, W. N.

AU - Garmire, G. P.

AU - Schneider, D. P.

AU - Broos, P. S.

AU - Townsley, L. K.

AU - Bautz, M. W.

AU - Burrows, D. N.

AU - Chartas, G.

AU - Feigelson, E. D.

AU - Griffiths, R.

AU - Lumb, D.

AU - Nousek, J. A.

AU - Sargent, W. L.W.

PY - 2000/9/20

Y1 - 2000/9/20

N2 - We present first results from an X-ray study of the Hubble Deep Field North (HDF-N) and its environs obtained using 166 ks of data collected by the Advanced CCD Imaging Spectrometer (ACIS) on board the Chandra X-Ray Observatory. This is the deepest X-ray observation ever reported, and in the HDF-N itself we detect six X-ray sources down to a 0.5-8 keV flux limit of ≈4 × 10-16 ergs cm-2 s-1. Comparing these sources with objects seen in multiwavelength HDF-N studies shows positional coincidences with the extremely red object NICMOS J123651.74 + 621221.4, an active galactic nucleus (AGN), three elliptical galaxies, and one nearby spiral galaxy. The X-ray emission from the ellipticals is consistent with that expected from a hot interstellar medium, and the spiral galaxy emission may arise from a "super-Eddington" X-ray binary or ultraluminous supernova remnant. Four of the X-ray sources have been detected at radio wavelengths. We also place X-ray upper limits on AGN candidates found in the HDF-N, and we present the tightest constraints yet on X-ray emission from the SCUBA submillimeter source population. None of the 10 high-significance submillimeter sources reported in the HDF-N and its vicinity is detected with the Chandra ACIS. These sources appear to be dominated by star formation or have AGNs with Compton-thick tori and little circumnuclear X-ray scattering.

AB - We present first results from an X-ray study of the Hubble Deep Field North (HDF-N) and its environs obtained using 166 ks of data collected by the Advanced CCD Imaging Spectrometer (ACIS) on board the Chandra X-Ray Observatory. This is the deepest X-ray observation ever reported, and in the HDF-N itself we detect six X-ray sources down to a 0.5-8 keV flux limit of ≈4 × 10-16 ergs cm-2 s-1. Comparing these sources with objects seen in multiwavelength HDF-N studies shows positional coincidences with the extremely red object NICMOS J123651.74 + 621221.4, an active galactic nucleus (AGN), three elliptical galaxies, and one nearby spiral galaxy. The X-ray emission from the ellipticals is consistent with that expected from a hot interstellar medium, and the spiral galaxy emission may arise from a "super-Eddington" X-ray binary or ultraluminous supernova remnant. Four of the X-ray sources have been detected at radio wavelengths. We also place X-ray upper limits on AGN candidates found in the HDF-N, and we present the tightest constraints yet on X-ray emission from the SCUBA submillimeter source population. None of the 10 high-significance submillimeter sources reported in the HDF-N and its vicinity is detected with the Chandra ACIS. These sources appear to be dominated by star formation or have AGNs with Compton-thick tori and little circumnuclear X-ray scattering.

UR - http://www.scopus.com/inward/record.url?scp=0034692242&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034692242&partnerID=8YFLogxK

U2 - 10.1086/309431

DO - 10.1086/309431

M3 - Article

AN - SCOPUS:0034692242

SN - 0004-637X

VL - 541

SP - 49

EP - 53

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 PART 1

ER -

X-ray sources in the Hubble Deep Field detected by Chandra

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