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  • The Chandra COSMOS Survey. III. Optical and Infrared Identification of X-Ray Point Sources 
    Civano, Francesca; Elvis, M.; Brusa, M.; Comastri, A.; Salvato, M.; Zamorani, G.; Aldcroft, Thomas L.; Bongiorno, A.; Capak, P.; Cappelluti, N.; Cisternas, M.; Fiore, F.; Fruscione, A.; Hao, H.; Kartaltepe, J.; Koekemoer, A.; Gilli, R.; Impey, C. D.; Lanzuisi, G.; Lusso, E.; Mainieri, V.; Miyaji, T.; Lilly, S.; Masters, D.; Puccetti, S.; Schawinski, K.; Scoville, N. Z.; Silverman, J.; Trump, J.; Urry, M.; Vignali, C.; Wright, N. J. (2012)
    The Chandra COSMOS Survey (C-COSMOS) is a large, 1.8 Ms, Chandra program that has imaged the central 0.9 deg<SUP>2</SUP> of the COSMOS field down to limiting depths of 1.9 × 10<SUP>-16</SUP> erg cm<SUP>-2</SUP> s<SUP>-1</SUP> ...
  • The Chandra COSMOS-Legacy Survey: Source X-Ray Spectral Properties 
    Marchesi, S.; Lanzuisi, G.; Civano, Francesca; Iwasawa, K.; Suh, H.; Comastri, A.; Zamorani, G.; Allevato, V.; Griffiths, R.; Miyaji, T.; Ranalli, P.; Salvato, M.; Schawinski, K.; Silverman, J.; Treister, E.; Urry, C. M.; Vignali, C. (2016)
    We present the X-ray spectral analysis of the 1855 extragalactic sources in the Chandra COSMOS-Legacy survey catalog having more than 30 net counts in the 0.5-7 keV band. A total of 38% of the sources are optically classified ...
  • The Chandra COSMOS-Legacy Survey: The z&gt;3 Sample 
    Marchesi, S.; Civano, Francesca; Salvato, M.; Shankar, F.; Comastri, A.; Elvis, M.; Lanzuisi, G.; Trakhtenbrot, B.; Vignali, C.; Zamorani, G.; Allevato, V.; Brusa, M.; Fiore, F.; Gilli, R.; Griffiths, R.; Hasinger, G.; Miyaji, T.; Schawinski, K.; Treister, E.; Urry, C. M. (2016)
    We present the largest high-redshift (3 <SUB>phot</SUB>). In this work, we treat z <SUB>phot</SUB> as a probability-weighted sum of contributions, adding to our sample the contribution of sources with z <SUB>phot</SUB> ...
  • Chandra Deep Observation of XDCP J0044.0-2033, a Massive Galaxy Cluster at z &gt; 1.5 
    Tozzi, P.; Santos, J. S.; Jee, M. J.; Fassbender, R.; Rosati, P.; Nastasi, A.; Forman, W.; Sartoris, B.; Borgani, S.; Boehringer, H.; Altieri, B.; Pratt, G. W.; Nonino, M.; Jones, C. (2015)
    We report the analysis of the Chandra observation of XDCP J0044.0-2033, a massive, distant (z = 1.579) galaxy cluster discovered in the XDCP survey. The total exposure time of 380 ks with Chandra ACIS-S provides the deepest ...
  • The Chandra Deep Wide-field Survey: A New Chandra Legacy Survey in the Boötes Field. I. X-Ray Point Source Catalog, Number Counts, and Multiwavelength Counterparts 
    Masini, Alberto; Hickox, Ryan C.; Carroll, Christopher M.; Aird, James; Alexander, David M.; Assef, Roberto J.; Bower, Richard; Brodwin, Mark; Brown, Michael J. I.; Chatterjee, Suchetana; Chen, Chien-Ting J.; Dey, Arjun; DiPompeo, Michael A.; Duncan, Kenneth J.; Eisenhardt, Peter R. M.; Forman, William R.; Gonzalez, Anthony H.; Goulding, Andrew D.; Hainline, Kevin N.; Jannuzi, Buell T.; Jones, Christine; Kochanek, Christopher S.; Kraft, Ralph; Lee, Kyoung-Soo; Miller, Eric D.; Mullaney, James; Myers, Adam D.; Ptak, Andrew; Stanford, Adam; Stern, Daniel; Vikhlinin, Alexey; Wake, David A.; Murray, Stephen S. (2020)
    We present a new, ambitious survey performed with the Chandra X-ray Observatory of the 9.3 deg<SUP>2</SUP> Boötes field of the NOAO Deep Wide-Field Survey. The wide field probes a statistically representative volume of the ...
  • Chandra Detection of SN 2010da Four Months After Outburst: Evidence for a High-mass X-Ray Binary in NGC 300 
    Binder, B.; Williams, B. F.; Kong, A. K. H.; Gaetz, T. J.; Plucinsky, Paul P.; Dalcanton, J. J.; Weisz, D. R. (2011)
    We present the results of a 63 ks Chandra observation of the &quot;supernova impostor&quot; SN 2010da four months after it was first observed on 2010 May 24. We detect an X-ray source at ~7? confidence coincident with the ...
  • Chandra Detection of the Circumnuclear Molecular Torus of the Compton-thick Active Galactic Nucleus in NGC 5643 
    Fabbiano, Giuseppina; Paggi, Alessandro; Siemiginowska, Aneta; Elvis, Martin (2018)
    We report a clumpy elongated feature found with deep Chandra Advanced CCD Imaging Spectrometer high-resolution imaging of the Fe Ka line emission in the nuclear region of the Compton-thick active galactic nucleus galaxy ...
  • Chandra detection of X-ray emission lines from the blast wave of V745 Sco 
    Drake, Jeremy J.; Starrfield, S.; Osborne, J. U.; Ness J.P.; Page, K.; Shore, S. N.; Wagner, R. M.; Woodward, C. E. (2014)
    The recurrent nova V745 Sco was discovered in outburst on 2014 Feb 6 (CBET #3803) and was observed by the Chandra X-ray Observatory Low-Energy (LETG) grating on 2014 February 22.52 and 23.43 UT, and by the High-Energy ...
  • Chandra Early-type Galaxy Atlas 
    Kim, Dong-Woo; Anderson, Craig S.; Burke, Douglas J.; D'Abrusco, Raffaele; Fabbiano, Giuseppina; Fruscione, Antonella; Lauer, Jennifer; McCollough, Michael; Morgan, Douglas; Mossman, Amy; O'Sullivan, Ewan; Paggi, Alessandro; Vrtilek, Saeqa; Trinchieri, Ginevra (2019)
    The hot interstellar medium (ISM) in early-type galaxies (ETGs) plays a crucial role in understanding their formation and evolution. The structural features of the hot gas identified by Chandra observations point to key ...
  • Chandra Evidence for AGN Feedback in the Spiral Galaxy NGC 6764 
    Croston, J. H.; Hardcastle, Martin J.; Kharb, P.; Kraft, R. P.; Hota, A. (2008)
  • Chandra grating spectroscopy of three hot white dwarfs 
    Adamczak, J.; Werner, K.; Rauch, T.; Schuh, S.; Drake, Jeremy J.; Kruk, J. W. (2012)
    Context. High-resolution soft X-ray spectroscopic observations of single hot white dwarfs are scarce. With the Chandra Low-Energy Transmission Grating, we have observed two white dwarfs, one is of spectral type DA (LB 1919) ...
  • Chandra High Energy Transmission Gratings Spectra of V3890 Sgr 
    Orio, M.; Drake, Jeremy J.; Ness, J. -U; Behar, E.; Luna, G. J. M.; Darnley, M. J.; Gallagher, J.; Gehrz, R. D.; Kuin, N. P. M.; Mikolajewska, J.; Ospina, N.; Page, K. L.; Poggiani, R.; Starrfield, S.; Williams, R.; Woodward, C. E. (2020)
    The recurrent nova (RN) V3890 Sgr was observed during the seventh day after the onset of its most recent outburst, with the Chandra ACIS-S camera and High Energy Transmission Gratings. A rich emission line spectrum was ...
  • Chandra High-resolution observations of CID-42, a Candidate Recoiling Supermassive Black Hole 
    Civano, Francesca; Elvis, M.; Lanzuisi, G.; Aldcroft, Thomas L.; Trichas, M.; Bongiorno, A.; Brusa, M.; Blecha, L.; Comastri, A.; Loeb, A.; Salvato, M.; Fruscione, A.; Koekemoer, A.; Komossa, S.; Gilli, R.; Mainieri, V.; Piconcelli, E.; Vignali, C. (2012)
    We present Chandra High Resolution Camera observations of CID-42, a candidate recoiling supermassive black hole (SMBH) at z = 0.359 in the COSMOS survey. CID-42 shows two optical compact sources resolved in the HST/ACS ...
  • The Chandra High-resolution X-Ray Spectrum of Quiescent Emission from Sgr A* 
    Corrales, Lia; Baganoff, F. K.; Wang, Q. D.; Nowak, M.; Neilsen, J.; Markoff, S.; Haggard, D.; Davis, James; Houck, John C.; Principe, D. (2020)
    In quiescence, Sgr A* is surprisingly dim, shining 100,000 times less than expected for its environment. This problem has motivated a host of theoretical models to explain radiatively inefficient accretion flows. The Chandra ...
  • The Chandra HRC View of the Subarcsecond Structures in the Nuclear Region of NGC 1068 
    Wang, Junfeng; Fabbiano, Giuseppina; Karovska, Margarita; Elvis, Martin; Risaliti, Guido (2012)
    We have obtained a high spatial resolution X-ray image of the nucleus of NGC 1068 using the High Resolution Camera (HRC-I) on board the Chandra X-ray Observatory, which provides an unprecedented view of the innermost 1 ...
  • Chandra Identification of 26 New Black Hole Candidates in the Central Region of M31 
    Barnard, R.; Garcia, M. R.; Murray, Stephen S. (2013)
    We have previously identified 10 M31 black hole candidates (BHCs) in M31 from their X-ray properties alone. They exhibit &quot;hard state&quot; emission spectra that are seen at luminosities lsim10% Eddington in X-ray ...
  • Chandra Imaging of the Western Hotspot in the Radio Galaxy Pictor A: Image Deconvolution and Variability Analysis 
    Thimmappa, R.; Stawarz, L.; Marchenko, V.; Balasubramaniam, K.; Cheung, C. C.; Siemiginowska, Aneta (2020)
    Here we present an analysis of the X-ray morphology and flux variability of the particularly bright and extended western hotspot in the nearest powerful (FR II-type) radio galaxy, Pictor A, based on data obtained with the ...
  • The Chandra Local Volume Survey. I. The X-Ray Point Source Populations of NGC 55, NGC 2403, and NGC 4214 
    Binder, B.; Williams, B. F.; Eracleous, M.; Plucinsky, Paul P.; Gaetz, T. J.; Anderson, S. F.; Skillman, E. D.; Dalcanton, J. J.; Kong, A. K. H.; Weisz, D. R. (2015)
    We present comprehensive X-ray point source catalogs of NGC 55, NGC 2403, and NGC 4214 as part of the Chandra Local Volume Survey. The combined archival observations have effective exposure times of 56.5 ks, 190 ks, and ...
  • The Chandra Local Volume Survey: The X-Ray Point-source Catalog of NGC 300 
    Binder, B.; Williams, B. F.; Eracleous, M.; Gaetz, T. J.; Plucinsky, Paul P.; Skillman, E. D.; Dalcanton, J. J.; Anderson, S. F.; Weisz, D. R.; Kong, A. K. H. (2012)
    We present the source catalog of a new Chandra ACIS-I observation of NGC 300 obtained as part of the Chandra Local Volume Survey. Our 63 ks exposure covers ~88% of the D <SUB>25</SUB> isophote (R ? 6.3 kpc) and yields a ...
  • The Chandra Local Volume Survey: The X-Ray Point-source Population of NGC 404 
    Binder, B.; Williams, B. F.; Eracleous, M.; Gaetz, T. J.; Kong, A. K. H.; Skillman, E. D.; Weisz, D. R. (2013)
    We present a comprehensive X-ray point-source catalog of NGC 404 obtained as part of the Chandra Local Volume Survey. A new 97 ks Chandra ACIS-S observation of NGC 404 was combined with archival observations for a total ...

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