Zobrazeno 1 - 10
of 281
pro vyhledávání: '"Fürst, Felix"'
Autor:
Imbrogno, Matteo, Motta, Sara Elisa, Amato, Roberta, Israel, Gian Luca, Castillo, Guillermo Andres Rodríguez, Brightman, Murray, Casella, Piergiorgio, Bachetti, Matteo, Fürst, Felix, Stella, Luigi, Pinto, Ciro, Pintore, Fabio, Tombesi, Francesco, Gúrpide, Andrés, Middleton, Matthew J., Salvaggio, Chiara, Tiengo, Andrea, Belfiore, Andrea, De Luca, Andrea, Esposito, Paolo, Wolter, Anna, Earnshaw, Hannah P., Walton, Dominic J., Roberts, Timothy P., Zampieri, Luca, Marelli, Martino, Salvaterra, Ruben
The discovery of pulsations in (at least) six ultraluminous X-ray sources (ULXs) has shown that neutron stars can accrete at (highly) super-Eddington rates, challenging the standard accretion theories. M51 ULX-7, with a spin signal of $P\simeq2.8$ s,
Externí odkaz:
http://arxiv.org/abs/2407.09240
Autor:
Belfiore, Andrea, Salvaterra, Ruben, Sidoli, Lara, Israel, Gian Luca, Stella, Luigi, De Luca, Andrea, Mereghetti, Sandro, Esposito, Paolo, Pintore, Fabio, D'Aì, Antonino, Castillo, Guillermo Rodrìguez, Walton, Dominic J., Fürst, Felix, Magistrali, Danilo, Wolter, Anna, Imbrogno, Matteo
Publikováno v:
ApJ 965, 78B (2024)
We report on the orbit of the binary system powering the most extreme ultraluminous X-ray pulsar known to date: NGC 5907 ULX-1 (hereafter ULX1). ULX1 has been the target of a substantial multi-instrument campaign, mainly in the X-ray band, but no cle
Externí odkaz:
http://arxiv.org/abs/2405.04574
Autor:
Earnshaw, Hannah P, Bachetti, Matteo, Brightman, Murray, Fürst, Felix, Harrison, Fiona A., Middleton, Matthew, Ludlam, Renee, Pike, Sean N., Stern, Daniel, Walton, Dominic J.
We observed the nearby and relatively understudied ultraluminous X-ray source (ULX) NGC 4190 ULX-1 jointly with NICER and NuSTAR to investigate its broadband spectrum, timing properties, and spectral variation over time. We found NGC 4190 ULX-1 to ha
Externí odkaz:
http://arxiv.org/abs/2403.13973
Autor:
Zalot, Nicolas, Sokolova-Lapa, Ekaterina, Stierhof, Jakob, Ballhausen, Ralf, Zainab, Aafia, Pottschmidt, Katja, Fürst, Felix, Thalhammer, Philipp, Islam, Nazma, Diez, Camille M., Kretschmar, Peter, Berger, Katrin, Rothschild, Richard, Malacaria, Christian, Pradhan, Pragati, Wilms, Jörn
Publikováno v:
A&A 686, A95 (2024)
Context. The High-Mass X-ray Binary (HMXB) system GX 301$-$2 is a persistent source with a well-known variable cyclotron line centered at 35 keV. Recently, a second cyclotron line at 50 keV has been reported with a presumably different behavior than
Externí odkaz:
http://arxiv.org/abs/2403.11682
Autor:
Bodaghee, Arash, Chiu, Alan J. -L., Tomsick, John A., Bhalerao, Varun, Bottacini, Eugenio, Clavel, Maica, Cox, Cody, Fürst, Felix, Middleton, Matthew J., Rahoui, Farid, Rodriguez, Jerome, Romano, Pat, Wilms, Joern
We report on a timing and spectral analysis of a 50-ks NuSTAR observation of IGR J16320-4751 (= AX J1631.9-4752); a high-mass X-ray binary hosting a slowly-rotating neutron star. In this observation from 2015, the spin period was 1,308.8+/-0.4 s givi
Externí odkaz:
http://arxiv.org/abs/2305.07068
Autor:
Brightman, Murray, Hameury, Jean-Marie, Lasota, Jean-Pierre, Baldi, Ranieri D., Bruni, Gabriele, Cann, Jenna M., Earnshaw, Hannah, Fürst, Felix, Heida, Marianne, Jaodand, Amruta, Lazzarini, Margaret, Middleton, Matthew J., Walton, Dominic J., Weaver, Kimberly A.
Ultraluminous X-ray sources (ULXs) are our best laboratories for studying extreme super-Eddington accretion. Most studies of these objects are of relatively persistent sources, however there is growing evidence to suggest a large fraction of these so
Externí odkaz:
http://arxiv.org/abs/2305.01693
A puzzling variety of superorbital modulations have been discovered in several supergiant High-Mass X-ray binaries (sgHMXBs). To investigate the mechanisms driving these superorbital modulations, we have analyzed long-term Neil Gehrels Swift Observat
Externí odkaz:
http://arxiv.org/abs/2302.07318
Autor:
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.
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 observations show evidence of reflected emission from the inner region of the accretion disc. By mod
Externí odkaz:
http://arxiv.org/abs/2205.08227
Autor:
Brightman, Murray, Kosec, Peter, Fürst, Felix, Earnshaw, Hannah, Heida, Marianne, Middleton, Matthew J, Stern, Daniel, Walton, Dominic J
We report on the discovery of an absorption line at $E=8.56^{+0.05}_{-0.11}$ keV detected with a significance of $>3.3\sigma$ in the NuSTAR and XMM-Newton spectra of a newly discovered hyperluminous X-ray source (HLX, $L_{\rm X}>10^{41}$ ergs$^{-1}$)
Externí odkaz:
http://arxiv.org/abs/2203.11955
Autor:
Malacaria, Christian, Bhargava, Yash, Coley, Joel B., Ducci, Lorenzo, Pradhan, Pragati, Ballhausen, Ralf, Fuerst, Felix, Islam, Nazma, Jaisawal, Gaurava K., Jenke, Peter, Kretschmar, Peter, Kreykenbohm, Ingo, Pottschmidt, Katja, Sokolova-Lapa, Ekaterina, Staubert, Rudiger, Wilms, Joern, Wilson-Hodge, Colleen A., Wolff, Michael T.
Accreting X-ray pulsars (XRPs) undergo luminous X-ray outbursts during which the luminosity-dependent spectral and timing features of the neutron star's emission can be analyzed in detail, thus shedding light on the accretion regime at work. We took
Externí odkaz:
http://arxiv.org/abs/2201.11376