Zobrazeno 1 - 10
of 392
pro vyhledávání: '"Hiramatsu, D"'
Autor:
Gagliano, A., Berger, E., Villar, V. A., Hiramatsu, D., Kessler, R., Matsumoto, T., Gilkis, A., Laplace, E.
Enhanced emission in the months to years preceding explosion has been detected for several core-collapse supernovae (SNe). Though the physical mechanisms driving the emission remain hotly debated, the light curves of detected events show long-lived (
Externí odkaz:
http://arxiv.org/abs/2408.13314
Autor:
Wang, Z. -Y., Pastorello, A., Maeda, K., Reguitti, A., Cai, Y. -Z., Howell, D. Andrew, Benetti, S., Buckley, D., Cappellaro, E., Carini, R., Cartier, R., Chen, T. -W., Elias-Rosa, N., Fang, Q. -L., Gal-Yam, A., Gangopadhyay, A., Gromadzki, M., Gan, W. -P., Hiramatsu, D., Hu, M. -K., Inserra, C., McCully, C., Nicholl, M., Olivares, F. E., Pignata, G., Pineda-Garc'ia, J., Pursiainen, M., Ragosta, F., Rau, A., Roy, R., Sollerman, J., Tartaglia, L., Terreran, G., Valerin, G., Wang, Q., Wang, S. -Q., Young, D. R., Aryan, A., Bronikowski, M., Concepcion, E., Galbany, L., Lin, H., Melandri, A., Petrushevska, T., Ramirez, M., Shi, D. -D, Warwick, B., Zhang, J. -J., Wang, B., Wang, X. -F., Zhu, X. -J.
We present optical and near-infrared observations of two Type Ibn supernovae (SNe), SN 2018jmt and SN 2019cj. Their light curves have rise times of about 10 days, reaching an absolute peak magnitude of $M_g$(SN 2018jmt) = $-$19.07 $\pm$ 0.37 and $M_V
Externí odkaz:
http://arxiv.org/abs/2408.12393
Autor:
Valerin, G., Pastorello, A., Mason, E., Reguitti, A., Benetti, S., Cai, Y. -Z., Chen, T. -W., Eappachen, D., Elias-Rosa, N., Fraser, M., Gangopadhyay, A., Hsiao, E. Y., Howell, D. A., Inserra, C., Izzo, L., Jencson, J., Kankare, E., Kotak, R., Lundqvist, P., Mazzali, P. A., Misra, K., Pignata, G., Prentice, S. J., Sand, D. J., Smartt, S. J., Stritzinger, M. D., Tartaglia, L., Valenti, S., Anderson, J. P., Andrews, J. E., Amaro, R. C., Barbarino, C., Brennan, S., Bufano, F., Callis, E., Cappellaro, E., Dastidar, R., Della Valle, M., Fiore, A., Fulton, M. D., Galbany, L., Gromadzki, M., Heikkilä, T., Hiramatsu, D., Karamehmetoglu, E., Kuncarayakti, H., Leloudas, G., Limongi, M., Lundquist, M., McCully, C., Müller-Bravo, T. E., Nicholl, M., Ochner, P., Gonzalez, E. Padilla, Paraskeva, E., Pellegrino, C., Rau, A., Reichart, D. E., Reynolds, T. M., Roy, R., Salmaso, I., Shahbandeh, M., Singh, M., Sollerman, J., Turatto, M., Tomasella, L., Wyatt, S., Young, D. R.
We investigate the spectroscopic characteristics of Intermediate Luminosity Red Transients (ILRTs), a class of elusive objects with peak luminosity between that of classical novae and standard supernovae. We present the extensive optical and near-inf
Externí odkaz:
http://arxiv.org/abs/2407.21733
Autor:
Valerin, G., Pastorello, A., Reguitti, A., Benetti, S., Cai, Y. -Z., Chen, T. -W., Eappachen, D., Elias-Rosa, N., Fraser, M., Gangopadhyay, A., Hsiao, E. Y., Howell, D. A., Inserra, C., Izzo, L., Jencson, J., Kankare, E., Kotak, R., Mazzali, P. A., Misra, K., Pignata, G., Prentice, S. J., Sand, D. J., Smartt, S. J., Stritzinger, M. D., Tartaglia, L., Valenti, S., Anderson, J. P., Andrews, J. E., Amaro, R. C., Brennan, S., Bufano, F., Callis, E., Cappellaro, E., Dastidar, R., Della Valle, M., Fiore, A., Fulton, M. D., Galbany, L., Heikkilä, T., Hiramatsu, D., Karamehmetoglu, E., Kuncarayakti, H., Leloudas, G., Lundquist, M., McCully, C., Müller-Bravo, T. E., Nicholl, M., Ochner, P., Gonzalez, E. Padilla, Paraskeva, E., Pellegrino, C., Reichart, D. E., Reynolds, T. M., Roy, R., Salmaso, I., Singh, M., Turatto, M., Tomasella, L., Wyatt, S., Young, D. R.
We investigate the photometric characteristics of a sample of Intermediate Luminosity Red Transients (ILRTs), a class of elusive objects with peak luminosity between that of classical novae and standard supernovae. We present the multi-wavelength pho
Externí odkaz:
http://arxiv.org/abs/2407.21671
Autor:
Szalai, T., Könyves-Tóth, R., Nagy, A. P., Hiramatsu, D., Arcavi, I., Bostroem, A., Howell, D. A., Farah, J., McCully, C., Newsome, M., Gonzalez, E. Padilla, Pellegrino, C., Terreran, G., Berger, E., Blanchard, P., Gomez, S., Székely, P., Bánhidi, D., Bíró, I. B., Csányi, I., Pál, A., Rho, J., Vinkó, J.
There is a growing number of peculiar events that cannot be assigned to any of the main supernova (SN) classes. SN 1987A and a handful of similar objects, thought to be explosive outcomes of blue supergiant stars, belong to them: while their spectra
Externí odkaz:
http://arxiv.org/abs/2406.02498
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:
Gkini, A., Lunnan, R., Schulze, S., Dessart, L., Brennan, S. J., Sollerman, J., Pessi, P. J., Nichol, M., Yan, L., Omand, C. M. B., Kangas, T., Moore, T., Anderson, J. P., Chen, T. -W., Gonzalez, E. P., Gromadzki, M., Gutiérrez, Claudia P., Hiramatsu, D., Howell, D. A., Ihanec, N., Inserra, C., McCully, C., Müller-Bravo, T. E., Pellegrino, C., Pignata, G., Pursiainen, M., Young, D. R.
SN\,2020zbf is a hydrogen-poor superluminous supernova (SLSN) at $z = 0.1947$ that shows conspicuous \ion{C}{II} features at early times, in contrast to the majority of H-poor SLSNe. Its peak magnitude is $M_{\rm g}$ = $-21.2$~mag and its rise time (
Externí odkaz:
http://arxiv.org/abs/2310.06814
Autor:
Graham, M. L., Kumar, S., Hosseinzadeh, G., Hiramatsu, D., Arcavi, I., Howell, D. A., Valenti, S., Sand, D. J., Parrent, J. T., McCully, C., Filippenko, A. V.
We present late-time spectra of eight Type Ia supernovae (SNe Ia) obtained at > 200 d after peak brightness using the Gemini South and Keck telescopes. All of the SNe Ia in our sample were nearby, well separated from their host galaxy's light, and ha
Externí odkaz:
http://hdl.handle.net/10150/625965
http://arizona.openrepository.com/arizona/handle/10150/625965
http://arizona.openrepository.com/arizona/handle/10150/625965
Autor:
Graur, O., Gonzalez, E. Padilla, Burke, J., Deckers, M., Jha, S. W., Galbany, L., Karamenhmetoglu, E., Stritzinger, M. D., Maguire, K., Howell, D. A., Fisher, R., Fullard, A. G., Handberg, R., Hiramatsu, D., Hosseinzadeh, G., Kerzendorf, W. E., McCully, C., Newsome, M., Pellegrino, C., Rest, A., Riess, A. G., Seitenzahl, I. R., Shara, M. M., Shen, K. J., Terreran, G., Zurek, D. R.
Near-infrared (NIR) observations of normal Type Ia supernovae (SNe Ia) obtained between 150 to 500 d past maximum light reveal the existence of an extended plateau. Here, we present observations of the underluminous, 1991bg-like SN 2021qvv. Early, gr
Externí odkaz:
http://arxiv.org/abs/2306.12858
Autor:
Pessi, P. J., Anderson, J. P., Folatelli, G., Dessart, L., González-Gaitán, S., Möller, A., Gutiérrez, C. P., Mattila, S., Reynolds, T. M., Charalampopoulos, P., Filippenko, A. V., Galbany, L., Gal-Yam, A., Gromadzki, M., Hiramatsu, D., Howell, D. A., Inserra, C., Kankare, E., Lunnan, R., Martinez, L., McCully, C., Meza, N., Müller-Bravo, T. E., Nicholl, M., Pellegrino, C., Pignata, G., Sollerman, J., Tucker, B. E., Wang, X., Young, D. R.
Hydrogen-rich Type II supernovae (SNe II) are the most frequently observed class of core-collapse SNe (CCSNe). However, most studies that analyse large samples of SNe II lack events with absolute peak magnitudes brighter than -18.5 mag at rest-frame
Externí odkaz:
http://arxiv.org/abs/2306.08880