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Abstract

An extremely deep X-ray survey (≈1 Ms) of the Hubble Deep Field North (HDF-N) and its environs (≈450 arcmin2) has been performed with the Advanced CCD Imaging Spectrometer on board the Chandra X-Ray Observatory. This is one of the two deepest X-ray surveys ever performed; for point sources near the aim point, it reaches 0.5-2.0 and 2-8 keV flux limits of ≈3 × 10-17 and ≈2 × 10-16 ergs cm-2 s-1, respectively. Here we provide source catalogs, along with details of the observations, data reduction, and technical analysis. Observing conditions, such as background, were excellent for almost all of the exposure. We have detected 370 distinct point sources: 360 in the 0.5-8.0 keV band, 325 in the 0.5-2.0 keV band, 265 in the 2-8 keV band, and 145 in the 4-8 keV band. Two new Chandra sources in the HDF-N itself are reported and discussed. Source positions are accurate to within 0″.6-1″.7 (at ≈90% confidence), depending mainly on the off-axis angle. We also detect two highly significant extended X-ray sources and several other likely extended X-ray sources. We present basic number count results for sources located near the center of the field. Source densities of 7100+1100-940 deg-2 (at 4.2 × 10-17 ergs cm-2 s-1) and 4200+670-580 deg-2 (at 3.8 × 10-16 ergs cm-2 s-1) are observed in the soft and hard bands, respectively.

Original languageEnglish (US)
Pages (from-to)2810-2832
Number of pages23
JournalAstronomical Journal
Volume122
Issue number6
DOIs
StatePublished - Dec 1 2001

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catalogs
erg
point source
x rays
point sources
spectrometer
imaging spectrometers
data reduction
observatory
confidence
charge coupled devices
observatories

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Brandt, W. N., Alexander, D. M., Hornschemeier, A. E., Garmire, G. P., Schneider, D. P., Barger, A. J., ... Sargent, W. L. W. (2001). The chandra deep field north survey. V. 1 Ms source catalogs. Astronomical Journal, 122(6), 2810-2832. https://doi.org/10.1086/324105
Brandt, William Nielsen ; Alexander, D. M. ; Hornschemeier, A. E. ; Garmire, G. P. ; Schneider, Donald P. ; Barger, A. J. ; Bauer, F. E. ; Broos, Patrick Sean ; Cowie, L. L. ; Townsley, Leisa K. ; Burrows, David Nelson ; Chartas, G. ; Feigelson, Eric ; Griffiths, R. E. ; Nousek, John Andrew ; Sargent, W. L.W. / The chandra deep field north survey. V. 1 Ms source catalogs. In: Astronomical Journal. 2001 ; Vol. 122, No. 6. pp. 2810-2832.
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abstract = "An extremely deep X-ray survey (≈1 Ms) of the Hubble Deep Field North (HDF-N) and its environs (≈450 arcmin2) has been performed with the Advanced CCD Imaging Spectrometer on board the Chandra X-Ray Observatory. This is one of the two deepest X-ray surveys ever performed; for point sources near the aim point, it reaches 0.5-2.0 and 2-8 keV flux limits of ≈3 × 10-17 and ≈2 × 10-16 ergs cm-2 s-1, respectively. Here we provide source catalogs, along with details of the observations, data reduction, and technical analysis. Observing conditions, such as background, were excellent for almost all of the exposure. We have detected 370 distinct point sources: 360 in the 0.5-8.0 keV band, 325 in the 0.5-2.0 keV band, 265 in the 2-8 keV band, and 145 in the 4-8 keV band. Two new Chandra sources in the HDF-N itself are reported and discussed. Source positions are accurate to within 0″.6-1″.7 (at ≈90{\%} confidence), depending mainly on the off-axis angle. We also detect two highly significant extended X-ray sources and several other likely extended X-ray sources. We present basic number count results for sources located near the center of the field. Source densities of 7100+1100-940 deg-2 (at 4.2 × 10-17 ergs cm-2 s-1) and 4200+670-580 deg-2 (at 3.8 × 10-16 ergs cm-2 s-1) are observed in the soft and hard bands, respectively.",
author = "Brandt, {William Nielsen} and Alexander, {D. M.} and Hornschemeier, {A. E.} and Garmire, {G. P.} and Schneider, {Donald P.} and Barger, {A. J.} and Bauer, {F. E.} and Broos, {Patrick Sean} and Cowie, {L. L.} and Townsley, {Leisa K.} and Burrows, {David Nelson} and G. Chartas and Eric Feigelson and Griffiths, {R. E.} and Nousek, {John Andrew} and Sargent, {W. L.W.}",
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Brandt, WN, Alexander, DM, Hornschemeier, AE, Garmire, GP, Schneider, DP, Barger, AJ, Bauer, FE, Broos, PS, Cowie, LL, Townsley, LK, Burrows, DN, Chartas, G, Feigelson, E, Griffiths, RE, Nousek, JA & Sargent, WLW 2001, 'The chandra deep field north survey. V. 1 Ms source catalogs', Astronomical Journal, vol. 122, no. 6, pp. 2810-2832. https://doi.org/10.1086/324105

The chandra deep field north survey. V. 1 Ms source catalogs. / Brandt, William Nielsen; Alexander, D. M.; Hornschemeier, A. E.; Garmire, G. P.; Schneider, Donald P.; Barger, A. J.; Bauer, F. E.; Broos, Patrick Sean; Cowie, L. L.; Townsley, Leisa K.; Burrows, David Nelson; Chartas, G.; Feigelson, Eric; Griffiths, R. E.; Nousek, John Andrew; Sargent, W. L.W.

In: Astronomical Journal, Vol. 122, No. 6, 01.12.2001, p. 2810-2832.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The chandra deep field north survey. V. 1 Ms source catalogs

AU - Brandt, William Nielsen

AU - Alexander, D. M.

AU - Hornschemeier, A. E.

AU - Garmire, G. P.

AU - Schneider, Donald P.

AU - Barger, A. J.

AU - Bauer, F. E.

AU - Broos, Patrick Sean

AU - Cowie, L. L.

AU - Townsley, Leisa K.

AU - Burrows, David Nelson

AU - Chartas, G.

AU - Feigelson, Eric

AU - Griffiths, R. E.

AU - Nousek, John Andrew

AU - Sargent, W. L.W.

PY - 2001/12/1

Y1 - 2001/12/1

N2 - An extremely deep X-ray survey (≈1 Ms) of the Hubble Deep Field North (HDF-N) and its environs (≈450 arcmin2) has been performed with the Advanced CCD Imaging Spectrometer on board the Chandra X-Ray Observatory. This is one of the two deepest X-ray surveys ever performed; for point sources near the aim point, it reaches 0.5-2.0 and 2-8 keV flux limits of ≈3 × 10-17 and ≈2 × 10-16 ergs cm-2 s-1, respectively. Here we provide source catalogs, along with details of the observations, data reduction, and technical analysis. Observing conditions, such as background, were excellent for almost all of the exposure. We have detected 370 distinct point sources: 360 in the 0.5-8.0 keV band, 325 in the 0.5-2.0 keV band, 265 in the 2-8 keV band, and 145 in the 4-8 keV band. Two new Chandra sources in the HDF-N itself are reported and discussed. Source positions are accurate to within 0″.6-1″.7 (at ≈90% confidence), depending mainly on the off-axis angle. We also detect two highly significant extended X-ray sources and several other likely extended X-ray sources. We present basic number count results for sources located near the center of the field. Source densities of 7100+1100-940 deg-2 (at 4.2 × 10-17 ergs cm-2 s-1) and 4200+670-580 deg-2 (at 3.8 × 10-16 ergs cm-2 s-1) are observed in the soft and hard bands, respectively.

AB - An extremely deep X-ray survey (≈1 Ms) of the Hubble Deep Field North (HDF-N) and its environs (≈450 arcmin2) has been performed with the Advanced CCD Imaging Spectrometer on board the Chandra X-Ray Observatory. This is one of the two deepest X-ray surveys ever performed; for point sources near the aim point, it reaches 0.5-2.0 and 2-8 keV flux limits of ≈3 × 10-17 and ≈2 × 10-16 ergs cm-2 s-1, respectively. Here we provide source catalogs, along with details of the observations, data reduction, and technical analysis. Observing conditions, such as background, were excellent for almost all of the exposure. We have detected 370 distinct point sources: 360 in the 0.5-8.0 keV band, 325 in the 0.5-2.0 keV band, 265 in the 2-8 keV band, and 145 in the 4-8 keV band. Two new Chandra sources in the HDF-N itself are reported and discussed. Source positions are accurate to within 0″.6-1″.7 (at ≈90% confidence), depending mainly on the off-axis angle. We also detect two highly significant extended X-ray sources and several other likely extended X-ray sources. We present basic number count results for sources located near the center of the field. Source densities of 7100+1100-940 deg-2 (at 4.2 × 10-17 ergs cm-2 s-1) and 4200+670-580 deg-2 (at 3.8 × 10-16 ergs cm-2 s-1) are observed in the soft and hard bands, respectively.

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Brandt WN, Alexander DM, Hornschemeier AE, Garmire GP, Schneider DP, Barger AJ et al. The chandra deep field north survey. V. 1 Ms source catalogs. Astronomical Journal. 2001 Dec 1;122(6):2810-2832. https://doi.org/10.1086/324105