Chandra ACIS Survey of M33 (ChASeM33): A first look

Paul P. Plucinsky, Benjamin Williams, Knox S. Long, Terrance J. Gaetz, Manami Sasaki, Wolfgang Pietsch, Ralph Tüllmann, Randall K. Smith, William P. Blair, David Helfand, John Hughes, P. Frank Winkler, Miguel De Avillez, Luciana Bianchi, Dieter Breitschwerdt, Richard J. Edgar, Parviz Ghavamian, Jonathan Grindlay, Frank Haberl, Robert KirshnerKip Kuntz, Tsevi Mazeh, Thomas G. Pannuti, Avi Shporer, David A. Thilker

Research output: Contribution to journalReview article

32 Citations (Scopus)

Abstract

We present an overview of the Chandra ACIS Survey of M33 (ChASeM33): A Deep Survey of the Nearest Face-on Spiral Galaxy. The 1.4 Ms survey covers the galaxy out to R ≈ 18′(≈ 4 kpc). These data provide the most intensive, high spatial resolution assessment of the X-ray source populations available for the confused inner regions of M33. Mosaic images of the ChASeM33 observations show several hundred individual X-ray sources as well as son diffuse emission from the hot interstellar medium. Bright, extended emission surrounds the nucleus and is also seen from the giant H II regions NGC 604 and IC 131. Fainter extended emission and numerous individual sources appear to trace the inner spiral structure. The initial source catalog, arising from ∼2/3 of the expected survey data, includes 394 sources significant at the 3 σ confidence level or greater, down to a limiting luminosity (absorbed) of ∼1.6 × 1035 ergs s-1 (0.35-8.0 keV). The hardness ratios of the sources separate those with soft, thermal spectra such as supernova remnants from those with hard, nonthermal spectra such as X-ray binaries and background active galactic nuclei. Emission extended beyond the Chandra point-spread function is evident in 23 of the 394 sources. Cross-correlation of the ChASeM33 sources against previous catalogs of X-ray sources in M33 results in matches for the vast majority of the brighter sources and shows 28 ChASeM33 sources within 10″ of supernova remnants identified by prior optical and radio searches. This brings the total number of such associations to 31 out of 100 known supernova remnants in M33.

Original languageEnglish (US)
Pages (from-to)366-378
Number of pages13
JournalAstrophysical Journal, Supplement Series
Volume174
Issue number2
DOIs
StatePublished - Feb 1 2008

Fingerprint

supernova remnants
catalogs
x rays
erg
hardness
spatial resolution
radio
H II regions
spiral galaxies
point spread functions
active galactic nuclei
cross correlation
confidence
luminosity
galaxies
nuclei
high resolution
mosaic

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Galaxies: individual (M33)
  • Supernova remnants
  • X-rays: galaxies

Cite this

Plucinsky, P. P., Williams, B., Long, K. S., Gaetz, T. J., Sasaki, M., Pietsch, W., ... Thilker, D. A. (2008). Chandra ACIS Survey of M33 (ChASeM33): A first look. Astrophysical Journal, Supplement Series, 174(2), 366-378. https://doi.org/10.1086/522942
Plucinsky, Paul P. ; Williams, Benjamin ; Long, Knox S. ; Gaetz, Terrance J. ; Sasaki, Manami ; Pietsch, Wolfgang ; Tüllmann, Ralph ; Smith, Randall K. ; Blair, William P. ; Helfand, David ; Hughes, John ; Winkler, P. Frank ; De Avillez, Miguel ; Bianchi, Luciana ; Breitschwerdt, Dieter ; Edgar, Richard J. ; Ghavamian, Parviz ; Grindlay, Jonathan ; Haberl, Frank ; Kirshner, Robert ; Kuntz, Kip ; Mazeh, Tsevi ; Pannuti, Thomas G. ; Shporer, Avi ; Thilker, David A. / Chandra ACIS Survey of M33 (ChASeM33) : A first look. In: Astrophysical Journal, Supplement Series. 2008 ; Vol. 174, No. 2. pp. 366-378.
@article{658febc2630a469a9054b593e2485679,
title = "Chandra ACIS Survey of M33 (ChASeM33): A first look",
abstract = "We present an overview of the Chandra ACIS Survey of M33 (ChASeM33): A Deep Survey of the Nearest Face-on Spiral Galaxy. The 1.4 Ms survey covers the galaxy out to R ≈ 18′(≈ 4 kpc). These data provide the most intensive, high spatial resolution assessment of the X-ray source populations available for the confused inner regions of M33. Mosaic images of the ChASeM33 observations show several hundred individual X-ray sources as well as son diffuse emission from the hot interstellar medium. Bright, extended emission surrounds the nucleus and is also seen from the giant H II regions NGC 604 and IC 131. Fainter extended emission and numerous individual sources appear to trace the inner spiral structure. The initial source catalog, arising from ∼2/3 of the expected survey data, includes 394 sources significant at the 3 σ confidence level or greater, down to a limiting luminosity (absorbed) of ∼1.6 × 1035 ergs s-1 (0.35-8.0 keV). The hardness ratios of the sources separate those with soft, thermal spectra such as supernova remnants from those with hard, nonthermal spectra such as X-ray binaries and background active galactic nuclei. Emission extended beyond the Chandra point-spread function is evident in 23 of the 394 sources. Cross-correlation of the ChASeM33 sources against previous catalogs of X-ray sources in M33 results in matches for the vast majority of the brighter sources and shows 28 ChASeM33 sources within 10″ of supernova remnants identified by prior optical and radio searches. This brings the total number of such associations to 31 out of 100 known supernova remnants in M33.",
keywords = "Galaxies: individual (M33), Supernova remnants, X-rays: galaxies",
author = "Plucinsky, {Paul P.} and Benjamin Williams and Long, {Knox S.} and Gaetz, {Terrance J.} and Manami Sasaki and Wolfgang Pietsch and Ralph T{\"u}llmann and Smith, {Randall K.} and Blair, {William P.} and David Helfand and John Hughes and Winkler, {P. Frank} and {De Avillez}, Miguel and Luciana Bianchi and Dieter Breitschwerdt and Edgar, {Richard J.} and Parviz Ghavamian and Jonathan Grindlay and Frank Haberl and Robert Kirshner and Kip Kuntz and Tsevi Mazeh and Pannuti, {Thomas G.} and Avi Shporer and Thilker, {David A.}",
year = "2008",
month = "2",
day = "1",
doi = "https://doi.org/10.1086/522942",
language = "English (US)",
volume = "174",
pages = "366--378",
journal = "Astrophysical Journal, Supplement Series",
issn = "0067-0049",
publisher = "IOP Publishing Ltd.",
number = "2",

}

Plucinsky, PP, Williams, B, Long, KS, Gaetz, TJ, Sasaki, M, Pietsch, W, Tüllmann, R, Smith, RK, Blair, WP, Helfand, D, Hughes, J, Winkler, PF, De Avillez, M, Bianchi, L, Breitschwerdt, D, Edgar, RJ, Ghavamian, P, Grindlay, J, Haberl, F, Kirshner, R, Kuntz, K, Mazeh, T, Pannuti, TG, Shporer, A & Thilker, DA 2008, 'Chandra ACIS Survey of M33 (ChASeM33): A first look', Astrophysical Journal, Supplement Series, vol. 174, no. 2, pp. 366-378. https://doi.org/10.1086/522942

Chandra ACIS Survey of M33 (ChASeM33) : A first look. / Plucinsky, Paul P.; Williams, Benjamin; Long, Knox S.; Gaetz, Terrance J.; Sasaki, Manami; Pietsch, Wolfgang; Tüllmann, Ralph; Smith, Randall K.; Blair, William P.; Helfand, David; Hughes, John; Winkler, P. Frank; De Avillez, Miguel; Bianchi, Luciana; Breitschwerdt, Dieter; Edgar, Richard J.; Ghavamian, Parviz; Grindlay, Jonathan; Haberl, Frank; Kirshner, Robert; Kuntz, Kip; Mazeh, Tsevi; Pannuti, Thomas G.; Shporer, Avi; Thilker, David A.

In: Astrophysical Journal, Supplement Series, Vol. 174, No. 2, 01.02.2008, p. 366-378.

Research output: Contribution to journalReview article

TY - JOUR

T1 - Chandra ACIS Survey of M33 (ChASeM33)

T2 - A first look

AU - Plucinsky, Paul P.

AU - Williams, Benjamin

AU - Long, Knox S.

AU - Gaetz, Terrance J.

AU - Sasaki, Manami

AU - Pietsch, Wolfgang

AU - Tüllmann, Ralph

AU - Smith, Randall K.

AU - Blair, William P.

AU - Helfand, David

AU - Hughes, John

AU - Winkler, P. Frank

AU - De Avillez, Miguel

AU - Bianchi, Luciana

AU - Breitschwerdt, Dieter

AU - Edgar, Richard J.

AU - Ghavamian, Parviz

AU - Grindlay, Jonathan

AU - Haberl, Frank

AU - Kirshner, Robert

AU - Kuntz, Kip

AU - Mazeh, Tsevi

AU - Pannuti, Thomas G.

AU - Shporer, Avi

AU - Thilker, David A.

PY - 2008/2/1

Y1 - 2008/2/1

N2 - We present an overview of the Chandra ACIS Survey of M33 (ChASeM33): A Deep Survey of the Nearest Face-on Spiral Galaxy. The 1.4 Ms survey covers the galaxy out to R ≈ 18′(≈ 4 kpc). These data provide the most intensive, high spatial resolution assessment of the X-ray source populations available for the confused inner regions of M33. Mosaic images of the ChASeM33 observations show several hundred individual X-ray sources as well as son diffuse emission from the hot interstellar medium. Bright, extended emission surrounds the nucleus and is also seen from the giant H II regions NGC 604 and IC 131. Fainter extended emission and numerous individual sources appear to trace the inner spiral structure. The initial source catalog, arising from ∼2/3 of the expected survey data, includes 394 sources significant at the 3 σ confidence level or greater, down to a limiting luminosity (absorbed) of ∼1.6 × 1035 ergs s-1 (0.35-8.0 keV). The hardness ratios of the sources separate those with soft, thermal spectra such as supernova remnants from those with hard, nonthermal spectra such as X-ray binaries and background active galactic nuclei. Emission extended beyond the Chandra point-spread function is evident in 23 of the 394 sources. Cross-correlation of the ChASeM33 sources against previous catalogs of X-ray sources in M33 results in matches for the vast majority of the brighter sources and shows 28 ChASeM33 sources within 10″ of supernova remnants identified by prior optical and radio searches. This brings the total number of such associations to 31 out of 100 known supernova remnants in M33.

AB - We present an overview of the Chandra ACIS Survey of M33 (ChASeM33): A Deep Survey of the Nearest Face-on Spiral Galaxy. The 1.4 Ms survey covers the galaxy out to R ≈ 18′(≈ 4 kpc). These data provide the most intensive, high spatial resolution assessment of the X-ray source populations available for the confused inner regions of M33. Mosaic images of the ChASeM33 observations show several hundred individual X-ray sources as well as son diffuse emission from the hot interstellar medium. Bright, extended emission surrounds the nucleus and is also seen from the giant H II regions NGC 604 and IC 131. Fainter extended emission and numerous individual sources appear to trace the inner spiral structure. The initial source catalog, arising from ∼2/3 of the expected survey data, includes 394 sources significant at the 3 σ confidence level or greater, down to a limiting luminosity (absorbed) of ∼1.6 × 1035 ergs s-1 (0.35-8.0 keV). The hardness ratios of the sources separate those with soft, thermal spectra such as supernova remnants from those with hard, nonthermal spectra such as X-ray binaries and background active galactic nuclei. Emission extended beyond the Chandra point-spread function is evident in 23 of the 394 sources. Cross-correlation of the ChASeM33 sources against previous catalogs of X-ray sources in M33 results in matches for the vast majority of the brighter sources and shows 28 ChASeM33 sources within 10″ of supernova remnants identified by prior optical and radio searches. This brings the total number of such associations to 31 out of 100 known supernova remnants in M33.

KW - Galaxies: individual (M33)

KW - Supernova remnants

KW - X-rays: galaxies

UR - http://www.scopus.com/inward/record.url?scp=40149088272&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=40149088272&partnerID=8YFLogxK

U2 - https://doi.org/10.1086/522942

DO - https://doi.org/10.1086/522942

M3 - Review article

VL - 174

SP - 366

EP - 378

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

SN - 0067-0049

IS - 2

ER -

Plucinsky PP, Williams B, Long KS, Gaetz TJ, Sasaki M, Pietsch W et al. Chandra ACIS Survey of M33 (ChASeM33): A first look. Astrophysical Journal, Supplement Series. 2008 Feb 1;174(2):366-378. https://doi.org/10.1086/522942