Zobrazeno 1 - 10
of 841
pro vyhledávání: '"Margutti, R."'
Autor:
Goodwin, A. J., Mummery, A., Laskar, T., Alexander, K. D., Anderson, G. E., Bietenholz, M., Bonnerot, C., Christy, C. T., Golay, W., Lu, W., Margutti, R., Miller-Jones, J. C. A., Ramirez-Ruiz, E., Saxton, R., van Velzen, S.
We present the discovery of a second radio flare from the tidal disruption event (TDE) AT2020vwl via long-term monitoring radio observations. Late-time radio flares from TDEs are being discovered more commonly, with many TDEs showing radio emission 1
Externí odkaz:
http://arxiv.org/abs/2410.18665
Autor:
Nicholl, M., Pasham, D. R., Mummery, A., Guolo, M., Gendreau, K., Dewangan, G. C., Ferrara, E. C., Remillard, R., Bonnerot, C., Chakraborty, J., Hajela, A., Dhillon, V. S., Gillan, A. F., Greenwood, J., Huber, M. E., Janiuk, A., Salvesen, G., van Velzen, S., Aamer, A., Alexander, K. D., Angus, C. R., Arzoumanian, Z., Auchettl, K., Berger, E., de Boer, T., Cendes, Y., Chambers, K. C., Chen, T. -W., Chornock, R., Fulton, M. D., Gao, H., Gillanders, J. H., Gomez, S., Gompertz, B. P., Fabian, A. C., Herman, J., Ingram, A., Kara, E., Laskar, T., Lawrence, A., Lin, C. -C., Lowe, T. B., Magnier, E. A., Margutti, R., McGee, S. L., Minguez, P., Moore, T., Nathan, E., Oates, S. R., Patra, K. C., Ramsden, P., Ravi, V., Ridley, E. J., Sheng, X., Smartt, S. J., Smith, K. W., Srivastav, S., Stein, R., Stevance, H. F., Turner, S. G. D., Wainscoat, R. J., Weston, J., Wevers, T., Young, D. R.
Quasi-periodic Eruptions (QPEs) are luminous bursts of soft X-rays from the nuclei of galaxies, repeating on timescales of hours to weeks. The mechanism behind these rare systems is uncertain, but most theories involve accretion disks around supermas
Externí odkaz:
http://arxiv.org/abs/2409.02181
Autor:
Hajela, A., Alexander, K. D., Margutti, R., Chornock, R., Bietenholz, M., Christy, C. T., Stroh, M., Terreran, G., Saxton, R., Komossa, S., Bright, J. S., Ramirez-Ruiz, E., Coppejans, D. L., Leung, J. K., Cendes, Y., Wiston, E., Laskar, T., Horesh, A., Schroeder, G., J., Nayana A., Wieringa, M. H., Velez, N., Berger, E., Blanchard, P. K., Eftekhari, T., Gomez, S., Nicholl, M., Sears, H., Zauderer, B. A.
We present the results from an extensive follow-up campaign of the Tidal Disruption Event (TDE) ASASSN-15oi spanning $\delta t \sim 10 - 3000$ d, offering an unprecedented window into the multiwavelength properties of a TDE during its first $\approx
Externí odkaz:
http://arxiv.org/abs/2407.19019
Autor:
Ibrahimzade, Dina, Margutti, R., Bright, J. S., Blanchard, P., Paterson, K., Lin, D., Sears, H., Polzin, A., Andreoni, I., Schroeder, G., Alexander, K. D., Berger, E., Coppejans, D. L., Hajela, A., Irwin, J., Laskar, T., Metzger, B. D., Rastinejad, J. C., Rhodes, L.
Fast X-ray Transients (FXTs) are a new observational class of phenomena with no clear physical origin. This is at least partially a consequence of limited multi-wavelength follow up of this class of transients in real time. Here we present deep optic
Externí odkaz:
http://arxiv.org/abs/2407.07257
Autor:
Jacobson-Galán, W. V., Davis, K. W., Kilpatrick, C. D., Dessart, L., Margutti, R., Chornock, R., Foley, R. J., Arunachalam, P., Auchettl, K., Bom, C. R., Cartier, R., Coulter, D. A., Dimitriadis, G., Dickinson, D., Drout, M. R., Gagliano, A. T., Gall, C., Garretson, B., Izzo, L., Jones, D. O., LeBaron, N., Miao, H. -Y., Milisavljevic, D., Pan, Y. -C., Rest, A., Rojas-Bravo, C., Santos, A., Sears, H., Subrayan, B. M., Taggart, K., Tinyanont, S.
We present UV/optical/NIR observations and modeling of supernova (SN) 2024ggi, a type II supernova (SN II) located in NGC 3621 at 7.2 Mpc. Early-time ("flash") spectroscopy of SN 2024ggi within +0.8 days of discovery shows emission lines of H I, He I
Externí odkaz:
http://arxiv.org/abs/2404.19006
Autor:
Eftekhari, T., Tchekhovskoy, A., Alexander, K. D., Berger, E., Chornock, R., Laskar, T., Margutti, R., Yao, Y., Cendes, Y., Gomez, S., Hajela, A., Pasham, D. R.
The tidal disruption event (TDE) AT2022cmc represents the fourth known example of a relativistic jet produced by the tidal disruption of a stray star providing a unique probe of the formation and evolution of relativistic jets in otherwise dormant su
Externí odkaz:
http://arxiv.org/abs/2404.10036
Autor:
Jacobson-Galán, W. V., Dessart, L., Davis, K. W., Kilpatrick, C. D., Margutti, R., Foley, R. J., Chornock, R., Terreran, G., Hiramatsu, D., Newsome, M., Gonzalez, E. Padilla, Pellegrino, C., Howell, D. A., Filippenko, A. V., Anderson, J. P., Angus, C. R., Auchettl, K., Bostroem, K. A., Brink, T. G., Cartier, R., Coulter, D. A., de Boer, T., Drout, M. R., Earl, N., Ertini, K., Farah, J. R., Farias, D., Gall, C., Gao, H., Gerlach, M. A., Guo, F., Haynie, A., Hosseinzadeh, G., Ibik, A. L., Jha, S. W., Jones, D. O., Langeroodi, D., LeBaron, N, Magnier, E. A., Piro, A. L., Raimundo, S. I., Rest, A., Rest, S., Rich, R. Michael, Rojas-Bravo, C., Sears, H., Taggart, K., Villar, V. A., Wainscoat, R. J., Wang, X-F., Wasserman, A. R., Yan, S., Yang, Y., Zhang, J., Zheng, W.
We present ultraviolet/optical/near-infrared observations and modeling of Type II supernovae (SNe II) whose early-time ($\delta t < 2$ days) spectra show transient, narrow emission lines from shock ionization of confined ($r < 10^{15}$ cm) circumstel
Externí odkaz:
http://arxiv.org/abs/2403.02382
Autor:
Migliori, G., Margutti, R., Metzger, B. D., Chornock, R., Vignali, C., Brethauer, D., Coppejans, D. L., Maccarone, T., Sandoval, L. Rivera, Bright, J. S., Laskar, T., Milisavljevic, D., Berger, E., Nayana, J.
We present the first deep X-ray observations of a luminous FBOT AT2018cow, at $\sim3.7\,\rm{yr}$ since discovery, together with the re-analysis of the observation at $\delta t\sim 220$ d. X-ray emission is significantly detected at a location consist
Externí odkaz:
http://arxiv.org/abs/2309.15678
Autor:
Gonzalez, E. Padilla, Howell, D. A., Terreran, G., McCully, C., Newsome, M., Burke, J., Farah, J., Pellegrino, C., Bostroem, K. A., Hosseinzadeh, G., Pearson, J., Sand, D. J., Shrestha, M., Smith, N., Dong, Y., Retamal, N. Meza, Valenti, S., Boos, S., Shen, K. J., Townsley, D., Galbany, L., Piscarreta, L., Foley, R. J., Bustamante-Rosell, M. J., Coulter, D. A., Chornock, R., Davis, K. W., Dickinson, C. B., Jones, D. O., Kutcka, J., Saux, X. K. Le, Rojas-Bravo, C. R., Taggart, K., Tinyanont, S., Yang, G., Jha, S. W., Margutti, R.
We present photometric and spectroscopic data for SN 2022joj, a nearby peculiar Type Ia supernova (SN Ia) with a fast decline rate ($\rm{\Delta m_{15,B}=1.4}$ mag). SN 2022joj shows exceedingly red colors, with a value of approximately ${B-V \approx
Externí odkaz:
http://arxiv.org/abs/2308.06334
Autor:
Jacobson-Galan, W. V., Dessart, L., Margutti, R., Chornock, R., Foley, R. J., Kilpatrick, C. D., Jones, D. O., Taggart, K., Angus, C. R., Bhattacharjee, S., Braff, L. A., Brethauer, D., Burgasser, A. J., Cao, F., Carlile, C. M., Chambers, K. C., Coulter, D. A., Dominguez-Ruiz, E., Dickinson, C. B., de Boer, T., Gagliano, A., Gall, C., Gao, H., Gates, E. L., Gomez, S., Guolo, M., Halford, M. R. J., Hjorth, J., Huber, M. E., Johnson, M. N., Karpoor, P. R., Laskar, T., LeBaron, N, Li, Z., Lin, Y., Loch, S. D., Lynam, P. D., Magnier, E. A., Maloney, P., Matthews, D. J., McDonald, M., Miao, H. -Y., Milisavljevic, D., Pan, Y. -C., Pradyumna, S., Ransome, C. L., Rees, J. M., Rest, A., Rojas-Bravo, C., Sandford, N. R., Ascencio, L. Sandoval, Sanjaripour, S., Savino, A., Sears, H., Sharei, N., Smartt, S. J., Softich, E. R., Theissen, C. A., Tinyanont, S., Tohfa, H., Villar, V. A., Wang, Q., Wainscoat, R. J., Westerling, A. L., Wiston, E., Wozniak, M. A., Yadavalli, S. K., Zenati, Y.
We present UV/optical observations and models of supernova (SN) 2023ixf, a type II SN located in Messier 101 at 6.9 Mpc. Early-time ("flash") spectroscopy of SN 2023ixf, obtained primarily at Lick Observatory, reveals emission lines of H I, He I/II,
Externí odkaz:
http://arxiv.org/abs/2306.04721