Zobrazeno 1 - 10
of 2 168
pro vyhledávání: '"Steiner, J. A."'
Autor:
Podgorný, J., Svoboda, J., Dovčiak, M., Veledina, A., Poutanen, J., Kaaret, P., Bianchi, S., Ingram, A., Capitanio, F., Datta, S. R., Egron, E., Krawczynski, H., Matt, G., Muleri, F., Petrucci, P. -O., Russell, T. D., Steiner, J. F., Bollemeijer, N., Brigitte, M., Segura, N. Castro, Emami, R., García, J. A., Hu, K., Iacolina, M. N., Kravtsov, V., Marra, L., Mastroserio, G., Muñoz-Darias, T., Nathan, E., Negro, M., Ratheesh, A., Cavero, N. Rodriguez, Taverna, R., Tombesi, F., Yang, Y. J., Zhang, W., Zhang, Y.
Publikováno v:
A&A 686, L12 (2024)
We report on the detection of X-ray polarisation in the black-hole X-ray binary Swift J1727.8$-$1613 during its dim hard spectral state by the Imaging X-ray Polarimetry Explorer (IXPE). This is the first detection of X-ray polarisation at the transit
Externí odkaz:
http://arxiv.org/abs/2404.19601
Autor:
Prasow-Émond, M., Hlavacek-Larrondo, J., Fogarty, K., Artigau, É., Mawet, D., Gandhi, P., Steiner, J. F., Rameau, J., Lafrenière, D., Fabian, A. C., Walton, D. J., Doyon, R., Ren, B. B.
Although the study of X-ray binaries has led to major breakthroughs in high-energy astrophysics, their circumbinary environment at scales of $\sim$100--10,000 astronomical units has not been thoroughly investigated. In this paper, we undertake a nove
Externí odkaz:
http://arxiv.org/abs/2403.15845
Autor:
Marra, L., Brigitte, M., Cavero, N. Rodriguez, Chun, S., Steiner, J. F., Dovčiak, M., Nowak, M., Bianchi, S., Capitanio, F., Ingram, A., Matt, G., Muleri, F., Podgorný, J., Poutanen, J., Svoboda, J., Taverna, R., Ursini, F., Veledina, A., De Rosa, A., Garcia, J. A., Lutovinov, A. A., Mereminskiy, I. A., Farinelli, R., Gunji, S., Kaaret, P., Kallman, T., Krawczynski, H., Kan, Y., Hu, K., Marinucci, A., Mastroserio, G., Mikušincová, R., Parra, M., Petrucci, P. O., Ratheesh, A., Soffitta, P., Tombesi, F., Zane, S., Agudo, I., Antonelli, L. A., Bachetti, M., Baldini, L., Baumgartner, W. H., Bellazzini, R., Bongiorno, S. D., Bonino, R., Brez, A., Bucciantini, N., Castellano, S., Cavazzuti, E., Chen, C., Ciprini, S., Costa, E., Del Monte, E., Di Gesu, L., Di Lalla, N., Di Marco, A., Donnarumma, I., Doroshenko, V., Ehlert, S. R., Enoto, T., Evangelista, Y., Fabiani, S., Ferrazzoli, R., Hayashida, K., Heyl, J., Iwakiri, W., Jorstad, S. G., Karas, V., Kislat, F., Kitaguchi, T., Kolodziejczak, J. J., La Monaca, F., Latronico, L., Liodakis, I., Maldera, S., Manfreda, A., Marin, F., Marscher, A. P., Marshall, H. L., Massaro, F., Mitsuishi, I., Mizuno, T., Negro, M., Ng, C. Y., O'Dell, S. L., Omodei, N., Oppedisano, C., Papitto, A., Pavlov, G. G., Peirson, A. L., Perri, M., Pesce-Rollins, M., Pilia, M., Possenti, A., Puccetti, S., Ramsey, B. D., Rankin, J., Roberts, O. J., Romani, R. W., Sgro, C., Slane, P., Spandre, G., Swartz, D. A., Tamagawa, T., Tavecchio, F., Tawara, Y., Tennant, A. F., Thomas, N. E., Trois, A., Tsygankov, S. S., Turolla, R., Vink, J., Weisskopf, M. C., Wu, K., Xie, F.
We present the results of the first X-ray polarimetric observation of the low-mass X-ray binary 4U 1957+115, performed with the Imaging X-ray Polarimetry Explorer in May 2023. The binary system has been in a high-soft spectral state since its discove
Externí odkaz:
http://arxiv.org/abs/2310.11125
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 522, Issue 2, June 2023, Pages 2207 - 2222
We analysed the nuclear region of all 56 early-type galaxies from the DIVING$^\mathrm{3D}$ Project, which is a statistically complete sample of objects that contains all 170 galaxies of the Southern Hemisphere with B < 12.0 mag and galactic latitude
Externí odkaz:
http://arxiv.org/abs/2304.13899
Autor:
Homan, D., Krumpe, M., Markowitz, A., Saha, T., Gokus, A., Partington, E., Lamer, G., Malyali, A., Liu, Z., Rau, A., Grotova, I., Cackett, E. M., Buckley, D. A. H., Ciroi, S., Di Mille, F., Gendreau, K., Gromadzki, M., Krishnan, S., Schramm, M., Steiner, J. F.
In November 2020, a new, bright object, eRASSt J234402.9$-$352640, was discovered in the second all-sky survey of SRG/eROSITA. The object brightened by a factor of at least 150 in 0.2--2.0 keV flux compared to an upper limit found six months previous
Externí odkaz:
http://arxiv.org/abs/2302.06989
Publikováno v:
2022, MNRAS, 513, 5935
This work presents the first results of the Deep IFS View of Nuclei of Galaxies (DIVING$^\mathrm{3D}$) survey. We analysed the nuclear emission-line spectra of a sub-sample we call mini-DIVING$^\mathrm{3D}$, which includes all Southern galaxies with
Externí odkaz:
http://arxiv.org/abs/2207.08013
Autor:
Prasow-Émond, M., Hlavacek-Larrondo, J., Fogarty, K., Rameau, J., Mawet, D., Guité, L. -S., Gandhi, P., Rao, A., Steiner, J., Artigau, É., Lafrenière, D., Fabian, A., Walton, D., Weiss, L., Doyon, R., Rhea, C. L., Bégin, T., Vigneron, B., Naud, M. -E.
X-ray binaries provide exceptional laboratories for understanding the physics of matter under the most extreme conditions. Until recently, there were few, if any, observational constraints on the circumbinary environments of X-ray binaries at $\sim$
Externí odkaz:
http://arxiv.org/abs/2205.05096
In this paper we use an RXTE library of spectral models from 10 black-hole and 9 pulsar X-ray binaries, as well as model spectra available in the literature from 13 extra-galactic Ultra-luminous X-ray sources (ULXs). We compute average bolometric cor
Externí odkaz:
http://arxiv.org/abs/2204.01749
Autor:
Mallick, L., Fabian, A. C., García, J. A., Tomsick, J. A., Parker, M. L., Dauser, T., Wilkins, D. R., De Marco, B., Steiner, J. F., Connors, R. M. T., Mastroserio, G., Markowitz, A. G., Pinto, C., Alston, W. N., Lohfink, A. M., Gandhi, P.
The standard alpha-disc model predicts an anti-correlation between the density of the inner accretion disc and the black hole mass times square of the accretion rate, as seen in higher mass ($M_{\rm BH}>10^{6} M_{\odot}$) active galactic nuclei (AGNs
Externí odkaz:
http://arxiv.org/abs/2203.04522
Autor:
Steiner, J. E., Menezes, R. B., Ricci, T. V., da Silva, Patrícia, Fernandes, R. Cid, Asari, N. Vale, Carvalho, M. S., May, D., Coelho, Paula R. T., de Amorim, A. L.
Publikováno v:
MNRAS, 510, 5780 (2022)
We present the Deep Integral Field Spectrograph View of Nuclei of Galaxies (DIVING$^{3D}$) survey, a seeing-limited optical 3D spectroscopy study of the central regions of all 170 galaxies in the Southern hemisphere with B < 12.0 and |b| > 15 degrees
Externí odkaz:
http://arxiv.org/abs/2202.00186