Zobrazeno 1 - 10
of 590
pro vyhledávání: '"CANNIZZARO G."'
CSS100217 was a nuclear, rapid and luminous flare in a Narrow-Line Seyfert 1 galaxy, whose initial interpretation as a supernova is now debated between variability of the active galactic nucleus (AGN) or a tidal disruption event (TDE). In this paper,
Externí odkaz:
http://arxiv.org/abs/2207.07402
Autor:
Onori, F., Cannizzaro, G., Jonker, P. G., Kim, M., Nicholl, M., Mattila, S., Reynolds, T. M., Fraser, M., Wevers, T., Brocato, E., Anderson, J. P., Carini, R., Charalampopoulos, P., Clark, P., Gromadzki, M., Gutiérrez, C. P., Ihanec, N., Inserra, C., Lawrence, A., Leloudas, G., Lundqvist, P., Müller-Bravo, T. E., Piranomonte, S., Pursiainen, M., Rybicki, K. A., Somero, A., Young, D. R., Chambers, K. C., Gao, H., de Boer, T. J. L., Magnier, E. A.
We present the results from a dense multi-wavelength (optical/UV, near-infrared (IR), and X-ray) follow-up campaign of the nuclear transient AT2017gge, covering a total of 1698 days from the transient's discovery. The bolometric lightcurve, the black
Externí odkaz:
http://arxiv.org/abs/2206.00049
Autor:
Eappachen, D., Jonker, P. G., Fraser, M., Torres, M. A. P., Dhillon, V. S., Marsh, T., Littlefair, S. P., Quirola-Vasquez, J., Maguire, K., Sanchez, D. Mata, Cannizzaro, G., Kostrzewa-Rutkowska, Z., Wevers, T., Onori, F., Inkenhaag, Anne, Brennan, S. J.
Over the past few years, $\sim$30 extragalactic fast X-ray transients (FXRTs) have been discovered, mainly in Chandra and XMM-Newton data. Their nature remains unclear, with proposed origins including a double neutron star merger, a tidal disruption
Externí odkaz:
http://arxiv.org/abs/2204.10012
Autor:
Wevers, T., Nicholl, M., Guolo, M., Charalampopoulos, P., Gromadzki, M., Reynolds, T. M., Kankare, E., Leloudas, G., Anderson, J. P., Arcavi, I., Cannizzaro, G., Chen, T. W., Ihanec, N., Inserra, C., Gutiérrez, C. P., Jonker, P. G., Lawrence, A., Magee, M. R., Müller-Bravo, T. E., Onori, F., Ridley, E., Schulze, S., Short, P., Hiramatsu, D., Newsome, M., Terwel, J. H., Yang, S., Young, D.
Publikováno v:
A&A 666, A6 (2022)
[Abridged] We classify AT 2020zso as a TDE based on the blackbody evolution inferred from UV/optical photometric observations, and spectral line content and evolution. We identify transient, double-peaked Bowen (N III), He I, He II and Halpha emissio
Externí odkaz:
http://arxiv.org/abs/2202.08268
Autor:
Callis, E., Fraser, M., Pastorello, A., Dong, Subo, Brennan, S. J., Chen, P., Bose, S., Reynolds, T., Salmon, L., Jonker, P., Benetti, S., Berton, M., Cannizzaro, G., Cappellaro, E., Congiu, E., Dyrbye, S., Eappachen, D., Elias-Rosa, N., Gromadzki, M., Gutiérrez, C. P., Holmbo, S., Holoien, T. W. S., Itagaki, K., Kankare, E., Mattila, S., Mutel, R., Ochner, P., Post, R. S., Prieto, J., Reguitti, A., Roth, T., Ryon, J., Sagués-Carracedo, A., Shappee, B. J., Siviero, A., Stassun, K. G., Stritzinger, M., Tomasella, L., Villanueva Jr., S., Wevers, T., Wiggins, P.
We present spectroscopy and photometry of SN 2018zd, a Type IIP core-collapse supernova with signatures of interaction with circumstantial material in its earliest spectra. High ionization lines, the earmark of shock breakout, are not seen in the ear
Externí odkaz:
http://arxiv.org/abs/2109.12943
Autor:
Charalampopoulos, P., Leloudas, G., Malesani, D. B., Wevers, T., Arcavi, I., Nicholl, M., Pursiainen, M., Lawrence, A., Anderson, J. P., Benetti, S., Cannizzaro, G., Chen, T. -W., Galbany, L., Gromadzki, M., Gutiérrez, C. P., Inserra, C., Jonker, P. G., Müller-Bravo, T. E., Onori, F., Short, P., Sollerman, J., Young, D. R.
Publikováno v:
A&A 659, A34 (2022)
Spectroscopically, TDEs are characterized by broad ( 10$^{4}$ km/s) emission lines and show large diversity as well as different line profiles. After carefully and consistently performing a series of data reduction tasks including host galaxy light s
Externí odkaz:
http://arxiv.org/abs/2109.00016
Autor:
Cai, Y. -Z., Pastorello, A., Fraser, M., Botticella, M. T., Elias-Rosa, N., Wang, L. -Z., Kotak, R., Benetti, S., Cappellaro, E., Turatto, M., Reguitti, A., Mattila, S., Smartt, S. J., Ashall, C., Benitez, S., Chen, T. -W., Harutyunyan, A., Kankare, E., Lundqvist, P., Mazzali, P. A., Morales-Garoffolo, A., Ochner, P., Pignata, G., Prentice, S. J., Reynolds, T. M., Shu, X. -W., Stritzinger, M. D., Tartaglia, L., Terreran, G., Tomasella, L., Valenti, S., Valerin, G., Wang, G. -J., Wang, X. -F., Borsato, L., Callis, E., Cannizzaro, G., Chen, S., Congiu, E., Ergon, M., Galbany, L., Gal-Yam, A., Gao, X., Gromadzki, M., Holmbo, S., Huang, F., Inserra, C., Itagaki, K., Kostrzewa-Rutkowska, Z., Maguire, K., Margheim, S., Moran, S., Onori, F., Carracedo, A. Sagués, Smith, K. W., Sollerman, J., Somero, A., Wang, B., Young, D. R.
Publikováno v:
A&A 654, A157 (2021)
We present the spectroscopic and photometric study of five intermediate-luminosity red transients (ILRTs), namely AT 2010dn, AT 2012jc, AT 2013la, AT 2013lb, and AT 2018aes. They share common observational properties and belong to a family of objects
Externí odkaz:
http://arxiv.org/abs/2108.05087
Autor:
Álvarez-Hernández, A., Torres, M. A. P., Rodríguez-Gil, P., Shahbaz, T., Anupama, G. C., Gazeas, K. D., Pavana, M., Raj, A., Hakala, P., Stone, G., Gomez, S., Jonker, P. G., Ren, J. -J., Cannizzaro, G., Pastor-Marazuela, I., Goff, W., Corral-Santana, J. M., Sabo, R.
We present a complete dynamical study of the intermediate polar and dwarf nova cataclysmic variable GK Per (Nova Persei 1901) based on a multi-site optical spectroscopy and $R$-band photometry campaign. The radial velocity curve of the evolved donor
Externí odkaz:
http://arxiv.org/abs/2107.06932
Autor:
Mento, C., Lombardo, C., Cannizzaro, G., Imbesi, M., Arena, F., Scaramuzzino, C., Mustica, P., Muscatello, M.R.A., Bruno, A.
Publikováno v:
In Journal of Affective Disorders Reports April 2024 16
Autor:
Cannizzaro, G., Wevers, T., Jonker, P. G., Pérez-Torres, M. A., Moldon, J., Mata-Sánchez, D., Leloudas, G., Pasham, D. R., Mattila, S., Arcavi, I., French, K. Decker, Onori, F., Inserra, C., Nicholl, M., Gromadzki, M., Chen, T. -W., Müller-Bravo, T. E., Short, P., Anderson, J. P., Young, D. R., Gendreau, K. C., Arzoumanian, Z., Löwenstein, M., Remillard, R., Roy, R., Hiramatsu, D.
We present the results of a large multi-wavelength follow-up campaign of the Tidal Disruption Event (TDE) \dsg, focusing on low to high resolution optical spectroscopy, X-ray, and radio observations. The galaxy hosts a super massive black hole of mas
Externí odkaz:
http://arxiv.org/abs/2012.10195