Zobrazeno 1 - 10
of 2 564
pro vyhledávání: '"Heida, A."'
Autor:
Sikorski, Alexander, Heida, Martin
The computation of Voronoi Diagrams, or their dual Delauney triangulations is difficult in high dimensions. In a recent publication Polianskii and Pokorny propose an iterative randomized algorithm facilitating the approximation of Voronoi tesselation
Externí odkaz:
http://arxiv.org/abs/2405.10050
Autor:
Greenwell, Claire L., Klindt, Lizelke, Lansbury, George B., Rosario, David J., Alexander, David M., Aird, James, Stern, Daniel, Forster, Karl, Koss, Michael J., Bauer, Franz E., Ricci, Claudio, Tomsick, John, Brandt, William N., Connor, Thomas, Boorman, Peter G., Annuar, Adlyka, Ballantyne, David R., Chen, Chien-Ting, Civano, Francesca, Comastri, Andrea, Fawcett, Victoria A., Fornasini, Francesca M., Gandhi, Poshak, Harrison, Fiona, Heida, Marianne, Hickox, Ryan, Kammoun, Elias S., Lanz, Lauranne, Marchesi, Stefano, Noirot, Gaël, Romero-Colmenero, Encarni, Treister, Ezequiel, Urry, C. Megan, Väisänen, Petri, van Soelen, Brian
We present a catalog of hard X-ray serendipitous sources detected in the first 80 months of observations by the Nuclear Spectroscopic Telescope Array (NuSTAR). The NuSTAR serendipitous survey 80-month (NSS80) catalog has an unprecedented $\sim$ 62 Ms
Externí odkaz:
http://arxiv.org/abs/2404.17637
We exhibit a percolating ergodic and isotropic lattice model in all but at least two dimensions that has zero effective conductivity in all spatial directions and for all non-trivial choices of the connectivity parameter. The model is based on the so
Externí odkaz:
http://arxiv.org/abs/2403.06785
A prime motivation for compiling catalogues of any celestial X-ray source is to increase our numbers of rare sub-classes. In this work we take a recent multi-mission catalogue of ultraluminous X-ray sources (ULXs) and look for hitherto poorly-studied
Externí odkaz:
http://arxiv.org/abs/2308.01034
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
Autor:
Davies, R., Absil, O., Agapito, G., Berbel, A. Agudo, Baruffolo, A., Biliotti, V., Bonaglia, M., Bonse, M., Briguglio, R., Campana, P., Cao, Y., Carbonaro, L., Cortes, A., Cresci, G., Dallilar, Y., Dannert, F., De Rosa, R. J., Deysenroth, M., Di Antonio, I., Di Cianno, A., Di Rico, G., Doelman, D., Dolci, M., Dorn, R., Eisenhauer, F., Esposito, S., Fantinel, D., Ferruzzi, D., Feuchtgruber, H., Finger, G., Schreiber, N. M. Förster, Gao, X., Gemperlein, H., Genzel, R., Gillessen, S., Ginski, C., Glauser, A. M., Glindemann, A., Grani, P., Hartl, M., Hayoz, J., Heida, M., Henry, D., Hofmann, R., Huber, H., Kasper, M., Keller, C., Kenworthy, M., Kravchenko, K., Kuntschner, H., Lacour, S., Lightfoot, J., Lunney, D., Lutz, D., Macintosh, M., Mannucci, F., Marsset, M., Modigliani, A., Neeser, M., de Xivry, G. Orban, Ott, T., Pallanca, L., Patapis, P., Pearson, D., Peña, E., Percheron, I., Puglisi, A., Quanz, S. P., Rabien, S., Rau, C., Riccardi, A., Salasnich, B., Schmid, H. -M., Schubert, J., Serra, B., Shimizu, T., Snik, F., Sturm, E., Tacconi, L., Taylor, W., Valentini, A., Waring, C., Wiezorrek, E., Xompero, M.
ERIS, the Enhanced Resolution Imager and Spectrograph, is an instrument that both extends and enhances the fundamental diffraction limited imaging and spectroscopy capability for the VLT. It replaces two instruments that were being maintained beyond
Externí odkaz:
http://arxiv.org/abs/2304.02343
Autor:
Fuerst, F., Walton, D. J., Israel, G. L., Bachetti, M., Barret, D., Brightman, M., Earnshaw, H. P., Fabian, A., Heida, M., Imbrogno, M., Middleton, M. J., Pinto, C., Salvaterra, R., Roberts, T. P., Castillo, G. A. Rodríguez, Webb, N.
Publikováno v:
A&A 672, A140 (2023)
NGC 5907 ULX1 is the most luminous ultra-luminous X-ray pulsar (ULXP) known to date, reaching luminosities in excess of 1e41 erg/s. The pulsar is known for its fast spin-up during the on-state. Here, we present a long-term monitoring of the X-ray flu
Externí odkaz:
http://arxiv.org/abs/2302.03425
Autor:
Kravchenko, Kateryna, Dallilar, Yigit, Absil, Olivier, Berbel, Alex Agudo, Baruffolo, Andrea, Bonse, Markus J., Buron, Alexander, Cao, Yixian, Cortes, Angela, Dannert, Felix, Davies, Richard, De Rosa, Robert J., Deysenroth, Matthias, Doelman, David S., Eisenhauer, Frank, Esposito, Simone, Feuchtgruber, Helmut, Schreiber, Natascha Förster, Gao, Xiaofeng, Gemperlein, Hans, Genzel, Reinhard, Gillessen, Stefan, Ginski, Christian, Glauser, Adrian M., Glindemann, Andreas, Grani, Paolo, Haguenauer, Pierre, Hartwig, Johannes, Hayoz, Jean, Heida, Marianne, Kenworthy, Matthew, Kolb, Johann, Kuntschner, Harald, Lutz, Dieter, Liu, Daizhong, MacIntosh, Mike, Marsset, Michaël, de Xivry, Gilles Orban, Özdemir, Hakan, Puglisi, Alfio, Quanz, Sascha P., Rau, Christian, Riccardi, Armando, Schuppe, Daniel, Snik, Frans, Sturm, Eckhard, Tacconi, Linda, Taylor, William D., Wiezorrek, Erich
ERIS (Enhanced Resolution Imager and Spectrograph) is a new adaptive optics instrument installed at the Cassegrain focus of the VLT-UT4 telescope at the Paranal Observatory in Chile. ERIS consists of two near-infrared instruments: SPIFFIER, an integr
Externí odkaz:
http://arxiv.org/abs/2301.01580
Autor:
Koss, Michael J., Ricci, Claudio, Trakhtenbrot, Benny, Oh, Kyuseok, Brok, Jakob S. den, Mejia-Restrepo, Julian E., Stern, Daniel, Privon, George C., Treister, Ezequiel, Powell, Meredith C., Mushotzky, Richard, Bauer, Franz E., Ananna, Tonima T., Balokovic, Mislav, Bar, Rudolf E., Becker, George, Bessiere, Patricia, Burtscher, Leonard, Caglar, Turgay, Congiu, Enrico, Evans, Phil, Harrison, Fiona, Heida, Marianne, Ichikawa, Kohei, Kamraj, Nikita, Lamperti, Isabella, Pacucci, Fabio, Ricci, Federica, Riffel, Rogerio, Rojas, Alejandra F., Schawinski, Kevin, Temple, Matthew, Urry, C. Megan, Veilleux, Sylvain, Williams, Jonathan
Publikováno v:
ApJS, 261, 2 (2022)
We present the AGN catalog and optical spectroscopy for the second data release of the Swift BAT AGN Spectroscopic Survey (BASS DR2). With this DR2 release we provide 1425 optical spectra, of which 1181 are released for the first time, for the 858 ha
Externí odkaz:
http://arxiv.org/abs/2207.12432
Autor:
Bodensteiner, J., Heida, M., Abdul-Masih, M., Baade, D., Banyard, G., Bowman, D. M., Fabry, M., Frost, A., Mahy, L., Marchant, P., Mérand, A., Reggiani, M., Rivinius, Th., Sana, H., Selman, F., Shenar, T.
Publikováno v:
The Messenger, 2022, vol. 186, p. 3-9
While the number of stellar-mass black holes detected in X-rays or as gravitational wave sources is steadily increasing, the known population remains orders of magnitude smaller than predicted by stellar evolution theory. A significant fraction of st
Externí odkaz:
http://arxiv.org/abs/2207.00366