Search Results - "LOEWENSTEIN, Michael"

An Empirical Background Model for the NICER X-Ray Timing Instrument by Remillard, Ronald A., Loewenstein, Michael, Steiner, James F., Prigozhin, Gregory Y., LaMarr, Beverly, Enoto, Teruaki, Gendreau, Keith C., Arzoumanian, Zaven, Markwardt, Craig, Basak, Arkadip, Stevens, Abigail L., Ray, Paul S., Altamirano, Diego, Buisson, Douglas J. K.

“…Abstract Neutron Star Interior Composition Explorer has a comparatively low background rate, but it is highly variable, and its spectrum must be predicted…”
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Moduli dark matter and the search for its decay line using Suzaku x-ray telescope by Kusenko, Alexander, Loewenstein, Michael, Yanagida, Tsutomu T.

“…Light scalar fields called moduli arise from a variety of different models involving supersymmetry and/or string theory; thus their existence is a generic…”
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On Iron Enrichment, Star Formation, and Type Ia Supernovae in Galaxy Clusters by Loewenstein, Michael

“…The nature of star formation and SNe Ia in galaxies in the field and in rich galaxy clusters are contrasted by juxtaposing the buildup of heavy metals in the…”
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Heating of Intergalactic Gas and Cluster Scaling Relations by Loewenstein, Michael

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The X-Ray Globular Cluster Population in NGC 1399 by Angelini, Lorella, Loewenstein, Michael, Mushotzky, Richard F

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In-Flight Calibration of Hitomi Soft X-Ray Spectrometer. (1) Background by Kilbourne, Caroline A., Sawada, Makoto, Tsujimoto, Masahiro, Angelini, Lorella, Boyce, Kevin R., Eckart, Megan, Fujimoto, Ryuichi, Ishisaki, Yoshitaka, Kelley, Richard, Koyama, Shu, Leutenegger, Maurice A., Loewenstein, Michael, McCammon, Dan, Mitsuda, Kazuhisa, Nakashima, Shinya, Porter, Frederick S., Seta, Hiromi, Takei, Yoh, Tashiro, Makoto S., Terada, Yukikatsu, Yamada, Shinya, Yamasaki, Noriko Y.

“…The X-Ray Spectrometer (XRS) instrument of Suzaku provided the first measurement of the non-X-ray background (NXB) of an X-ray calorimeter spectrometer, but…”
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PERSPECTIVES ON INTRACLUSTER ENRICHMENT AND THE STELLAR INITIAL MASS FUNCTION IN ELLIPTICAL GALAXIES by Loewenstein, Michael

“…Stars formed in galaxy cluster potential wells must be responsible for the high level of enrichment measured in the intracluster medium (ICM); however, there…”
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AN IN-DEPTH STUDY OF THE ABUNDANCE PATTERN IN THE HOT INTERSTELLAR MEDIUM IN NGC 4649 by Loewenstein, Michael, Davis, David S.

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Dark Matter Search Using Chandra Observations of Willman 1 and a Spectral Feature Consistent with a Decay Line of a 5 keV Sterile Neutrino by Loewenstein, Michael, Kusenko, Alexander

“…We report the results of a search for an emission line from radiatively decaying dark matter in the Chandra X-ray Observatory spectrum of the ultra-faint dwarf…”
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DETECTION OF AN UNIDENTIFIED EMISSION LINE IN THE STACKED X-RAY SPECTRUM OF GALAXY CLUSTERS by Bulbul, Esra, Markevitch, Maxim, Foster, Adam, Smith, Randall K, Loewenstein, Michael, Randall, Scott W

“…We detect a weak unidentified emission line at E = (3.55-3.57) + or - 0.03 keV in a stacked XMM-Newton spectrum of 73 galaxy clusters spanning a redshift range…”
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DARK MATTER SEARCH USING XMM-NEWTON OBSERVATIONS OF WILLMAN 1 by LOEWENSTEIN, Michael, KUSENKO, Alexander

“…We report the results of a search for an emission line from radiatively decaying dark matter in the ultra-faint dwarf spheroidal galaxy Willman 1 based on…”
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Cosmic ray generation by quasar remnants: constraints and implications by Boldt, Elihu, Loewenstein, Michael

“…The quasar remnant cores of nearby giant elliptical galaxies NGC 4486 (M87), 1399, 4649 and 4472 are the sites of supermassive (>109 M⊙) black holes. These…”
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1ES 1927+654: An AGN Caught Changing Look on a Timescale of Months by Trakhtenbrot, Benny, Arcavi, Iair, MacLeod, Chelsea L., Ricci, Claudio, Kara, Erin, Graham, Melissa L., Stern, Daniel, Harrison, Fiona A., Burke, Jamison, Hiramatsu, Daichi, Hosseinzadeh, Griffin, Howell, D. Andrew, Smartt, Stephen J., Rest, Armin, Prieto, Jose L., Shappee, Benjamin J., Holoien, Thomas W.-S., Bersier, David, Filippenko, Alexei V., Brink, Thomas G., Zheng, WeiKang, Li, Ruancun, Remillard, Ronald A., Loewenstein, Michael

“…We study the sudden optical and ultraviolet (UV) brightening of 1ES 1927+654, which until now was known as a narrow-line active galactic nucleus (AGN). 1ES…”
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Evolution of a Relativistic Outflow and X-Ray Corona in the Extreme Changing-look AGN 1ES 1927+654 by Masterson, Megan, Kara, Erin, Ricci, Claudio, García, Javier A., Fabian, Andrew C., Pinto, Ciro, Kosec, Peter, Remillard, Ronald A., Loewenstein, Michael, Trakhtenbrot, Benny, Arcavi, Iair

“…Abstract 1ES 1927+654 is a paradigm-defying active galactic nucleus (AGN) and one of the most peculiar X-ray nuclear transients. In early 2018, this well-known…”
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New Limits on Sterile Neutrinos from Suzaku Observations of the Ursa Minor Dwarf Spheroidal Galaxy by Loewenstein, Michael, Kusenko, Alexander, Biermann, Peter L

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Lense–Thirring precession after a supermassive black hole disrupts a star by Pasham, Dheeraj R., Zajaček, Michal, Nixon, C. J., Coughlin, Eric R., Śniegowska, Marzena, Janiuk, Agnieszka, Czerny, Bożena, Wevers, Thomas, Guolo, Muryel, Ajay, Yukta, Loewenstein, Michael

“…An accretion disk formed around a supermassive black hole after it disrupts a star is expected to be initially misaligned with respect to the equatorial plane…”
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A NEW METHOD TO CONSTRAIN SUPERNOVA FRACTIONS USING X-RAY OBSERVATIONS OF CLUSTERS OF GALAXIES by BULBUL, Esra, SMITH, Randall K, LOEWENSTEIN, Michael

“…Supernova (SN) explosions enrich the intracluster medium (ICM) both by creating and dispersing metals. We introduce a method to measure the number of SNe and…”
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HIGH-RESOLUTION XMM-NEWTON SPECTROSCOPY OF THE COOLING FLOW CLUSTER A3112 by ESRA BULBUL, G, SMITH, Randall K, FOSTER, Adam, COTTAM, Jean, LOEWENSTEIN, Michael, MUSHOTZKY, Richard, SHAFER, Richard

“…We examine high signal-to-noise XMM-Newton European Photon Imaging Camera (EPIC) and Reflection Grating Spectrometer (RGS) observations to determine the…”
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UV–Optical Disk Reverberation Lags despite a Faint X-Ray Corona in the Active Galactic Nucleus Mrk 335 by Kara, Erin, Barth, Aaron J., Cackett, Edward M., Gelbord, Jonathan, Montano, John, Li, Yan-Rong, Santana, Lisabeth, Horne, Keith, Alston, William N., Buisson, Douglas, Chelouche, Doron, Du, Pu, Fabian, Andrew C., Fian, Carina, Gallo, Luigi, Goad, Michael R., Grupe, Dirk, González Buitrago, Diego H., Hernández Santisteban, Juan V., Kaspi, Shai, Hu, Chen, Komossa, S., Kriss, Gerard A., Lewin, Collin, Lewis, Tiffany, Loewenstein, Michael, Lohfink, Anne, Masterson, Megan, McHardy, Ian M., Mehdipour, Missagh, Miller, Jake, Panagiotou, Christos, Parker, Michael L., Pinto, Ciro, Remillard, Ron, Reynolds, Christopher, Rogantini, Daniele, Wang, Jian-Min, Wang, Jingyi, Wilkins, Dan

“…Abstract  We present the first results from a 100-day Swift, NICER, and ground-based X-ray–UV–optical reverberation mapping campaign of the Narrow-line Seyfert…”
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AN IN-DEPTH STUDY OF THE ABUNDANCE PATTERN IN THE HOT INTERSTELLAR MEDIUM IN NGC 4649 by LOEWENSTEIN, Michael, DAVIS, David S

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