Search Results - "PARKER, Michael L"

High-density reflection spectroscopy: I. A case study of GX 339-4 by Jiang, Jiachen, Fabian, Andrew C, Wang, Jingyi, Walton, Dominic J, García, Javier A, Parker, Michael L, Steiner, James F, Tomsick, John A

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Alternative Explanations for Extreme Supersolar Iron Abundances Inferred from the Energy Spectrum of Cygnus X-1 by Tomsick, John A., Parker, Michael L., García, Javier A., Yamaoka, Kazutaka, Barret, Didier, Chiu, Jeng-Lun, Clavel, Maïca, Fabian, Andrew, Fürst, Felix, Gandhi, Poshak, Grinberg, Victoria, Miller, Jon M., Pottschmidt, Katja, Walton, Dominic J.

“…Here we study a 1-200 keV energy spectrum of the black hole binary Cygnus X-1 taken with NuSTAR and Suzaku. This is the first report of a NuSTAR observation of…”
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The XMM-Newton/HST View of the Obscuring Outflow in the Seyfert Galaxy Mrk 335 Observed at Extremely Low X-Ray Flux by Longinotti, Anna Lia, Kriss, Gerard, Krongold, Yair, Arellano-Cordova, Karla Z., Komossa, S., Gallo, Luigi, Grupe, Dirk, Mathur, Smita, Parker, Michael L., Pradhan, Anil, Wilkins, Dan

“…The Seyfert galaxy Mrk 335 is known for its frequent changes of flux and spectral shape in the X-ray band that occurred during recent years. These variations…”
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The response of relativistic outflowing gas to the inner accretion disk of a black hole by Parker, Michael L., Pinto, Ciro, Fabian, Andrew C., Lohfink, Anne, Buisson, Douglas J. K., Alston, William N., Kara, Erin, Cackett, Edward M., Chiang, Chia-Ying, Dauser, Thomas, De Marco, Barbara, Gallo, Luigi C., Garcia, Javier, Harrison, Fiona A., King, Ashley L., Middleton, Matthew J., Miller, Jon M., Miniutti, Giovanni, Reynolds, Christopher S., Uttley, Phil, Vasudevan, Ranjan, Walton, Dominic J., Wilkins, Daniel R., Zoghbi, Abderahmen

“…X-ray detection of an ultrafast outflow of gas is strongly linked with energy emission from the inner accretion disk of a black hole, suggesting that X-rays…”
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Reflection Modeling of the Black Hole Binary 4U 1630–47: The Disk Density and Returning Radiation by Connors, Riley M. T., García, Javier A., Tomsick, John, Hare, Jeremy, Dauser, Thomas, Grinberg, Victoria, Steiner, James F., Mastroserio, Guglielmo, Sridhar, Navin, Fabian, Andrew C., Jiang, Jiachen, Parker, Michael L., Harrison, Fiona, Kallman, Timothy R.

“…We present the analysis of X-ray observations of the black hole binary 4U 1630−47 using relativistic reflection spectroscopy. We use archival data from the…”
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Physics Beyond the Standard Model with Future X-Ray Observatories: Projected Constraints on Very-light Axion-like Particles with Athena and AXIS by Sisk-Reynés, Júlia, Reynolds, Christopher S., Parker, Michael L., Matthews, James H., Marsh, M. C. David

“…Abstract Axion-like particles (ALPs) are well-motivated extensions of the Standard Model of Particle Physics and a generic prediction of some string theories…”
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The RS Oph Outburst of 2021 Monitored in X-Rays with NICER by Orio, Marina, Gendreau, Keith, Giese, Morgan, Luna, Gerardo Juan M., Magdolen, Jozef, Strohmayer, Tod E., Zhang, Andy E., Altamirano, Diego, Dobrotka, Andrej, Enoto, Teruaki, Ferrara, Elizabeth C., Ignace, Richard, Heinz, Sebastian, Markwardt, Craig, Nichols, Joy S., Parker, Michael L., Pasham, Dheeraj R., Pei, Songpeng, Pradhan, Pragati, Remillard, Ron, Steiner, James F., Tombesi, Francesco

“…Abstract The 2021 outburst of the symbiotic recurrent nova RS Oph was monitored with the Neutron Star Interior Composition Explorer Mission (NICER) in the…”
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A TEST OF THE NATURE OF THE FE K LINE IN THE NEUTRON STAR LOW-MASS X-RAY BINARY SERPENS X-1 by Chiang, Chia-Ying, Cackett, Edward M., Miller, Jon M., Barret, Didier, Fabian, Andy C., D'Aì, Antonino, Parker, Michael L., Bhattacharyya, Sudip, Burderi, Luciano, Salvo, Tiziana Di, Egron, Elise, Homan, Jeroen, Iaria, Rosario, Lin, Dacheng, Miller, M. Coleman

“…ABSTRACT Broad Fe K emission lines have been widely observed in the X-ray spectra of black hole systems as well as in neutron star systems. The intrinsically…”
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High Density Reflection Spectroscopy – II. The density of the inner black hole accretion disc in AGN by Jiang, Jiachen, Fabian, Andrew C, Dauser, Thomas, Gallo, Luigi, García, Javier A, Kara, Erin, Parker, Michael L, Tomsick, John A, Walton, Dominic J, Reynolds, Christopher S

“…ABSTRACT We present a high density disc reflection spectral analysis of a sample of 17 Seyfert 1 galaxies to study the inner disc densities at different black…”
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Comparing reflection and absorption models for the soft X-ray variability in the NLS1 AGN UGC 11763 by Jiang, Jiachen, Gallo, Luigi C, Grupe, Dirk, Parker, Michael L

“…ABSTRACT We present a spectral analysis of two XMM–Newton observations of the narrow-line Seyfert 1 galaxy UGC 11763. UGC 11763 shows very different soft X-ray…”
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The Effects of High Density on the X-ray Spectrum Reflected from Accretion Discs Around Black Holes by Garcia, Javier A., Fabian, Andrew C., Kallman, Timothy R., Dauser, Thomas, Parker, Micahel L., McClintock, Jeffrey E., Steiner, James F., Wilms, Jorn

“…Current models of the spectrum of X-rays reflected from accretion discs around black holes and other compact objects are commonly calculated assuming that the…”
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A disc reflection model for ultra-soft narrow-line Seyfert 1 galaxies by Jiang, Jiachen, Gallo, Luigi C, Fabian, Andrew C, Parker, Michael L, Reynolds, Christopher S

“…ABSTRACT We present a detailed analysis of the XMM–Newton observations of five narrow-line Seyfert 1 galaxies (NLS1s). They all show very soft continuum…”
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A relativistic disc reflection model for 1H0419–577: Multi-epoch spectral analysis with XMM–Newton and NuSTAR by Jiang (姜), Jiachen (嘉陈), Walton, Dominic J, Fabian, Andrew C, Parker, Michael L

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A NuSTAR view of GRS 1716−249 in the hard and intermediate states by Jiang, Jiachen, Fürst, Felix, Walton, Dominic J, Parker, Michael L, Fabian, Andrew C

“…ABSTRACT We present a detailed analysis of the spectral properties of the black hole transient GRS 1716−249, based on the archival Swift and NuSTAR…”
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Studying the Reflection Spectra of the New Black Hole X-Ray Binary Candidate MAXI J1631−479 Observed by NuSTAR: A Variable Broad Iron Line Profile by Xu, Yanjun, Harrison, Fiona A., Tomsick, John A., Walton, Dominic J., Barret, Didier, García, Javier A., Hare, Jeremy, Parker, Michael L.

“…We present results from the Nuclear Spectroscopic Telescope Array observations of the new black hole X-ray binary candidate MAXI J1631-479 at two epochs during…”
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The Disk Wind in GRS 1915+105 as Seen by Insight–Hard X-Ray Modulation Telescope by Liu, Honghui, Fu, Yuhan, Bambi, Cosimo, Jiang, Jiachen, Parker, Michael L., Ji, Long, Kong, Lingda, Zhang, Liang, Zhang, Shu, Zhang, Yuexin

“…Abstract We analyze three observations of GRS 1915+105 in 2017 by Insight–Hard X-ray Modulation Telescope when the source was in a spectrally soft state. We…”
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XMM–Newton observations of the narrow-line Seyfert 1 galaxy IRAS 13224−3809: X-ray spectral analysis II by Jiang, Jiachen, Dauser, Thomas, Fabian, Andrew C, Alston, William N, Gallo, Luigi C, Parker, Michael L, Reynolds, Christopher S

“…ABSTRACT Previously, we modelled the X-ray spectra of the narrow-line Seyfert 1 galaxy IRAS 13224−3809 using a disc reflection model with a fixed electron…”
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Wind-luminosity evolution in NLS1 AGN 1H 0707−495 by Xu, Yerong, Pinto, Ciro, Bianchi, Stefano, Kosec, Peter, Parker, Michael L, Walton, Dominic J, Fabian, Andrew C, Guainazzi, Matteo, Barret, Didier, Cusumano, Giancarlo

“…ABSTRACT Ultrafast outflows (UFOs) have been detected in the high-quality X-ray spectra of a number of active galactic nuclei (AGNs) with fairly high accretion…”
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On the Impact of an Intermediate Duration X-Ray Burst on the Accretion Environment in IGR J17062–6143 by Bult, Peter, Altamirano, Diego, Arzoumanian, Zaven, Ballantyne, David R., Chenevez, Jerome, Fabian, Andrew C., Gendreau, Keith C., Homan, Jeroen, Jaisawal, Gaurava K., Malacaria, Christian, Miller, Jon M., Parker, Michael L., Strohmayer, Tod E.

“…We report on a spectroscopic analysis of the X-ray emission from IGR J17062−6143 in the after-math of its June 2020 intermediate duration Type I X-ray burst…”
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A NuSTAR and Swift view of the hard state of MAXI J1813−095 by Jiang, Jiachen, Buisson, Douglas J K, Dauser, Thomas, Fabian, Andrew C, Fürst, Felix, Gallo, Luigi C, Harrison, Fiona A, Parker, Michael L, Steiner, James F, Tomsick, John A, Ubach, Santiago, Walton, Dominic J

“…ABSTRACT We present an analysis of the NuSTAR and Swift spectra of the black hole candidate MAXI J1813−095 in a failed-transition outburst in 2018. The NuSTAR…”
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