Search Results - "Kaastra, J.S."

A Hard Look at Local, Optically Selected, Obscured Seyfert Galaxies by Kammoun, E. S., Miller, J. M., Koss, M., Oh, K., Zoghbi, A., Mushotzky, R. F., Barret, D., Behar, E., Brandt, W. N., Brenneman, L. W., Kaastra, J. S., Lohfink, A. M., Proga, D., Stern, D.

“…We study the X-ray spectra of a sample of 19 obscured, optically selected Seyfert galaxies (Sy 1.8, 1.9, and 2) in the local universe ( d  ≤ 175 Mpc), drawn…”
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X-Ray Structure between the Innermost Disk and Optical Broad-line Region in NGC 4151 by 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.

“…We present an analysis of the narrow Fe K line in Chandra/HETGS observations of the Seyfert active galactic nucleus (AGN) NGC 4151. The sensitivity and…”
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A Hard Look at NGC 5347: Revealing a Nearby Compton-thick AGN by Kammoun, E. S., Miller, J. M., Zoghbi, A., Oh, K., Koss, M., Mushotzky, R. F., Brenneman, L. W., Brandt, W. N., Proga, D., Lohfink, A. M., Kaastra, J. S., Barret, D., Behar, E., Stern, D.

“…Current measurements show that the observed fraction of Compton-thick (CT) active galactic nuclei (AGN) is smaller than the expected values needed to explain…”
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The Nature of the Broadband X-Ray Variability in the Dwarf Seyfert Galaxy NGC 4395 by Kammoun, E. S., Nardini, E., Zoghbi, A., Miller, J. M., Cackett, E. M., Gallo, E., Reynolds, M. T., Risaliti, G., Barret, D., Brandt, W. N., Brenneman, L. W., Kaastra, J. S., Koss, M., Lohfink, A. M., Mushotzky, R. F., Raymond, J., Stern, D.

“…We present a flux-resolved X-ray analysis of the dwarf Seyfert 1.8 galaxy NGC 4395, based on three archival XMM-Newton and one archival NuSTAR observations…”
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High spectral resolution X-ray observations of AGN by Kaastra, J.S.

“…A brief overview of some highlights of high spectral resolution X‐ray observations of AGN is given, mainly obtained with the RGS of XMM‐Newton. Future…”
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A highly-ionized absorber as a new explanation for the spectral changes during dips from X-ray binaries by Boirin, L., Méndez, M., Díaz Trigo, M., Parmar, A.N., Kaastra, J.S.

“…We report the XMM-Newton detection of narrow Fe xxv and Fe xxvi X-ray absorption lines at 7 keV in the persistent emission of the dipping low-mass X-ray binary…”
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Spectroscopic studies of AGN by Kaastra, J.S.

“…High resolution X-ray spectra of AGN have been obtained for the first time due to the launch of the Chandra and XMM-Newton X-ray observatories. This paper is…”
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The temperature structure in the core of Sérsic 159-03 by de Plaa, J., Kaastra, J.S., Méndez, M., Tamura, T., Bleeker, J.A.M., Peterson, J.R., Paerels, F.B.S., Bonamente, M., Lieu, R.

“…We present results from a new 120 ks XMM-Newton observation of the cluster of galaxies Sérsic 159-03. In this paper, we focus on the high-resolution X-ray…”
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Thermal and non-thermal emission from clusters by Kaastra, J.S.

“…The first results of BeppoSAX on clusters of galaxies are presented. BeppoSAX offers broad-band spectroscopy in the 0.1–100 keV band with in addition imaging…”
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XMM-Newton study of soft excess X-ray emission in clusters of galaxies by Kaastra, J.S., Lieu, R., Tamura, T., Paerels, F.B.S., den Herder, J.W.

“…We discuss the detection of soft excess X-ray emission in a sample of 19 clusters of galaxies observed by XMM-Newton. In 6/19 clusters evidence for a soft…”
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High resolution spectroscopy of Seyfert warm absorbers with XMM-Newton by Blustin, A.J., Branduardi-Raymont, G., Behar, E., Kaastra, J.S., Page, M.J., Kahn, S.M., Sako, M., Steenbrugge, K.C.

“…We present results from the analysis of an XMM-Newton observation of the Seyfert 1 galaxy NGC 7469, the first high resolution X-ray spectrum of this source…”
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Ultraviolet images of galaxies from the Optical Monitor on XMM-Newton by Blustin, A.J., Branduardi-Raymont, G., Crawford, M.L., Breeveld, A.A., Kaastra, J.S., Kahn, S.M.

“…A large number of galaxies, both normal and active, have been observed in ultraviolet light by the Optical Monitor on XMM-Newton. These are some of the deepest…”
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High-resolution X-ray spectroscopy of late-type stars with CHANDRA by Mewe, R., Raassen, A.J.J., Kaastra, J.S., van der Meer, R.L.J., Brinkman, A.C.

“…We have analyzed high-resolution (Δλ ≅ 0.06 Å) X-ray spectra in the region 6–180 Å of the coronae of the cool stars Capella, Procyon, and α Centauri. These…”
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Spatially resolved spectroscopy of the cluster of galaxies A 2199 by Kaastra, J.S., Bleeker, J.A.M., Mewe, R.

“…The X-ray spectrum of the bright cD cluster of galaxies A 2199 is studied using all instruments of BeppoSAX. Spatially resolved spectroscopy with the MECS…”
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