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  • X-Ray Spectral Curvature of High-frequency-peaked BL Lac Objects: A Predictor for the TeV Flux 
    Massaro, Francesco; Paggi, A.; Elvis, M.; Cavaliere, A. (2011)
    Most of the extragalactic sources detected at TeV energies are BL Lac objects. They belong to the subclass of high-frequency-peaked BL Lac objects (HBLs) exhibiting spectral energy distributions with a lower energy peak ...
  • X-ray spectral properties of Seyfert galaxies and the unification scheme 
    Singh, V.; Shastri, P.; Risaliti, G. (2011)
    Context. The unification scheme of Seyfert galaxies predicts that the observed differences between types 1 and 2 Seyfert galaxies are solely due to the differing orientations of the toroidal-shaped obscuring material around ...
  • X-Ray Spectroscopic Diagnosis of a Wind-Collimated Blast Wave and Metal-Rich Ejecta from the 2006 Explosion of RS Ophiuchi 
    Drake, Jeremy J.; Laming, J. M.; Ness, J. -U; Orlando, S.; Starrfield, S.; Beardmore, A. P.; Bode, M. F.; Evans, A.; Eyres, S. P. S.; Gehrz, R. D.; Goad, M. R.; Gonzalez-Riestra, R.; Krautter, J.; O'Brien, T. J.; Osborne, J. P.; Page, K. L.; Schwarz, G.; Woodward, C. E. (2009)
  • X-Ray Spectroscopic Signatures of the Extended Corona of FK Comae 
    Drake, Jeremy J.; Chung, Sun Mi; Kashyap, Vinay L.; Korhonen, Heidi; van Ballegooijen, Adriaan A.; Elstner, Detlef (2008)
  • X-ray Star Clusters in the Carina Complex 
    Feigelson, Eric D.; Getman, Konstantin V.; Townsley, Leisa K.; Broos, Patrick S.; Povich, Matthew S.; Garmire, Gordon P.; King, Robert R.; Montmerle, Thierry; Preibisch, Thomas; Smith, Nathan; Stassun, Keivan G.; Wang, Junfeng; Wolk, Scott; Zinnecker, Hans (2011)
    The distribution of young stars found in the Chandra Carina Complex Project (CCCP) is examined for clustering structure. X-ray surveys are advantageous for identifying young stellar populations compared to optical and ...
  • The X-Ray Star Formation Story as Told by Lyman Break Galaxies in the 4 Ms CDF-S 
    Basu-Zych, Antara R.; Lehmer, Bret D.; Hornschemeier, Ann E.; Bouwens, Rychard J.; Fragos, Tassos; Oesch, Pascal A.; Belczynski, Krzysztof; Brandt, W. N.; Kalogera, Vassiliki; Luo, Bin; Miller, Neal; Mullaney, James R.; Tzanavaris, Panayiotis; Xue, Yongquan; Zezas, Andreas (2013)
    We present results from deep X-ray stacking of >4000 high-redshift galaxies from z ? 1 to 8 using the 4 Ms Chandra Deep Field-South data, the deepest X-ray survey of the extragalactic sky to date. The galaxy samples ...
  • X-Ray Structure between the Innermost Disk and Optical Broad-line Region in NGC 4151 
    Miller, J. M.; Cackett, E.; Zoghbi, A.; Barret, D.; Behar, E.; Brenneman, L. W.; Fabian, A. C.; Kaastra, J. S.; Lohfink, A.; Mushotzky, R. F.; Nandra, K.; Raymond, J. (2018)
    We present an analysis of the narrow Fe Ka line in Chandra/HETGS observations of the Seyfert active galactic nucleus (AGN) NGC 4151. The sensitivity and resolution afforded by the gratings reveal asymmetry in this line. ...
  • X-ray study of Abell 3365 with XMM-Newton 
    Urdampilleta, I.; Simionescu, A.; Kaastra, J. S.; Zhang, X.; Di Gennaro, Gabriella; Mernier, F.; de Plaa, J.; Brunetti, G. (2021)
    We present an X-ray spectral analysis using XMM-Newton/EPIC observations (~100 ks) of the merging galaxy cluster Abell 3365 (z = 0.093). Previous radio observations suggested the presence of a peripheral elongated radio ...
  • X-Ray study of echinoderm skeletons 
    Pawson, David L.; Donnay, D. H. (1970)
  • X-Ray study of Echinodermata 
    Donnay, G. D. H.; Pawson, David L. (1969)
  • An X-Ray Study of Supernova Remnant N49 and Soft Gamma-Ray Repeater 0526-66 in the Large Magellanic Cloud 
    Park, Sangwook; Hughes, John P.; Slane, Patrick O.; Burrows, David N.; Lee, Jae-Joon; Mori, Koji (2012)
    We report on the results from our deep Chandra observation (120 ks) of the supernova remnant (SNR) N49 and soft gamma-ray repeater (SGR) 0526-66 in the Large Magellanic Cloud. We firmly establish the detection
  • X-ray surface brightness and gas density fluctuations in the Coma cluster 
    Churazov, E.; Vikhlinin, Alexey A.; Zhuravleva, I.; Schekochihin, A.; Parrish, I.; Sunyaev, R.; Forman, W.; Böhringer, H.; Randall, Scott W. (2012)
    X-ray surface brightness fluctuations in the core (650 × 650 kpc) region of the Coma cluster observed with XMM-Newton and Chandra are analysed using a 2D power spectrum approach. The resulting 2D spectra are converted to ...
  • An X-ray survey of low-mass stars in Trumpler 16 with Chandra 
    Albacete-Colombo, J. F.; Damiani, F.; Micela, G.; Sciortino, S.; Harnden, F. R.,Jr. (2008)
  • An X-ray survey of the 2 Jy sample - II. X-ray emission from extended structures 
    Mingo, B.; Hardcastle, M. J.; Ineson, J.; Mahatma, V.; Croston, J. H.; Dicken, D.; Evans, D. A.; Morganti, R.; Tadhunter, C. (2017)
    The 2 Jy sample is a survey of radio galaxies with flux densities above 2 Jy at 2.7 GHz. As part of our ongoing work on the southern subset of 2 Jy sources, in paper I of this series we analysed the X-ray cores of the ...
  • An X-Ray Survey of the Young Stellar Population of the Lynds 1641 and Iota Orionis Regions 
    Pillitteri, Ignazio; Wolk, S. J.; Megeath, S. T.; Allen, L.; Bally, J.; Gagné, M.; Gutermuth, R. A.; Hartman, L.; Micela, G.; Myers, P.; Oliveira, J. M.; Sciortino, S.; Walter, F.; Rebull, L.; Stauffer, J. (2013)
    We present an XMM-Newton survey of the part of the Orion A cloud south of the Orion Nebula. This survey includes the Lynds 1641 (L1641) dark cloud, a region of the Orion A cloud with very few massive stars and hence a ...
  • X-Ray Tail in NGC 7619 
    Kim, Dong-Woo; Kim, Eunhyeuk; Fabbiano, Giuseppina; Trinchieri, Ginevra (2008)
  • The X-Ray Telescope (XRT) for the Hinode Mission 
    Golub, Leon; DeLuca, Edward E.; Austin, G.; Bookbinder, Jay A.; Caldwell, David; Cheimets, Peter; Cirtain, J.; Cosmo, M.; Reid, P.; Sette, A.; Weber, Mark A.; Sakao, T.; Kano, R.; Shibasaki, K.; Hara, H.; Tsuneta, S.; Kumagai, K.; Tamura, T.; Shimojo, M.; McCracken, J.; Carpenter, J.; Haight, H.; Siler, R.; Wright, E.; Tucker, J.; Rutledge, H.; Barbera, M.; Peres, G.; Varisco, S. (2007)
    The X-ray Telescope (XRT) of the Hinode mission provides an unprecedented combination of spatial and temporal resolution in solar coronal studies. The high sensitivity and broad dynamic range of XRT, coupled with the ...
  • X-ray to NIR emission from AA Tauri during the dim state. Occultation of the inner disk and gas-to-dust ratio of the absorber 
    Schneider, P. C.; France, K.; Günther, H. M.; Herczeg, G.; Robrade, J.; Bouvier, J.; McJunkin, M.; Schmitt, J. H. M. M. (2015)
    AA Tau is a well-studied, nearby classical T Tauri star, which is viewed almost edge-on. A warp in its inner disk periodically eclipses the central star, causing a clear modulation of its optical light curve. The system ...
  • The X-ray to optical-UV luminosity ratio of X-ray selected type 1 AGN in XMM-COSMOS 
    Lusso, E.; Comastri, Andrea; Vignali, C.; Zamorani, G.; Brusa, Marcella; Gilli, R.; Iwasawa, K.; Salvato, Mara; Civano, Francesca; Elvis, Martin; Merloni, A.; Bongiorno, Angela; Trump, J. R.; Koekemoer, Anton M.; Schinnerer, Eva; Le Floc'h, E.; Cappelluti, Nico; Jahnke, K.; Sargent, M.; Silverman, J.; Mainieri, V.; Fiore, F.; Bolzonella, M.; Le Fèvre, O.; Garilli, B.; Iovino, A.; Kneib, J. P.; Lamareille, F.; Lilly, S.; Mignoli, M.; Scodeggio, M.; Vergani, D. (2010)
  • X-ray verification of an optically aligned off-plane grating module 
    Donovan, Benjamin D.; McEntaffer, Randall L.; Tutt, James H.; DeRoo, Casey T.; Allured, Ryan; Gaskin, Jessica A.; Kolodziejczak, Jeffery J. (2018)
    Off-plane x-ray reflection gratings are theoretically capable of achieving high resolution and high diffraction efficiencies over the soft x-ray bandpass, making them an ideal technology to implement on upcoming x-ray ...

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