Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Sarangi, Arkaprabha"'
Autor:
Bossion, Duncan, Sarangi, Arkaprabha, Aalto, Susanne, Esmerian, Clarke, Hashemi, Rasoul, Knudsen, Kirsten Kraiberg, Vlemmings, Wouter, Nyman, Gunnar
Context. Cosmic dust is ubiquitous in astrophysical environments, where it significantly influences the chemistry and the spectra. Dust grains are likely to grow through the accretion of atoms and molecules from the gas-phase onto them. Despite their
Externí odkaz:
http://arxiv.org/abs/2411.06125
Autor:
Shahbandeh, Melissa, Fox, Ori D., Temim, Tea, Dwek, Eli, Sarangi, Arkaprabha, Smith, Nathan, Dessart, Luc, Nickson, Bryony, Engesser, Michael, Filippenko, Alexei V., Brink, Thomas G., Zheng, Weikang, Szalai, Tamás, Johansson, Joel, Rest, Armin, Van Dyk, Schuyler D., Andrews, Jennifer, Ashall, Chris, Clayton, Geoffrey C., De Looze, Ilse, Derkacy, James M., Dulude, Michael, Foley, Ryan J., Gezari, Suvi, Gomez, Sebastian, Gonzaga, Shireen, Indukuri, Siva, Jencson, Jacob, Kasliwal, Mansi, Lane, Zachary G., Lau, Ryan, Law, David, Marston, Anthony, Milisavljevic, Dan, O'Steen, Richard, Pierel, Justin, Siebert, Matthew, Skrutskie, Michael, Strolger, Lou, Tinyanont, Samaporn, Wang, Qinan, Williams, Brian, Xiao, Lin, Yang, Yi, Zsíros, Szanna
Dust from core-collapse supernovae (CCSNe), specifically Type IIP SNe, has been suggested to be a significant source of the dust observed in high-redshift galaxies. CCSNe eject large amounts of newly formed heavy elements, which can condense into dus
Externí odkaz:
http://arxiv.org/abs/2410.09142
Autor:
Zsíros, Szanna, Szalai, Tamás, De Looze, Ilse, Sarangi, Arkaprabha, Shahbandeh, Melissa, Fox, Ori D., Temim, Tea, Milisavljevic, Dan, Van Dyk, Schuyler D., Smith, Nathan, Filippenko, Alexei V., Brink, Thomas G., Zheng, WeiKang, Dessart, Luc, Jencson, Jacob, Johansson, Joel, Pierel, Justin, Rest, Armin, Tinyanont, Samaporn, Niculescu-Duvaz, Maria, Barlow, M. J., Wesson, Roger, Andrews, Jennifer, Clayton, Geoff, De, Kishalay, Dwek, Eli, Engesser, Michael, Foley, Ryan J., Gezari, Suvi, Gomez, Sebastian, Gonzaga, Shireen, Kasliwal, Mansi, Lau, Ryan, Marston, Anthony, O'Steen, Richard, Siebert, Matthew, Skrutskie, Michael, Strolger, Lou, Wang, Qinan, Williams, Brian, Williams, Robert, Xiao, Lin
We present mid-infrared (mid-IR) imaging of the Type IIL supernova (SN) 1980K with the James Webb Space Telescope (JWST) more than 40 yr post-explosion. SN 1980K, located in the nearby ($D\approx7$ Mpc) "SN factory" galaxy NGC 6946, was serendipitous
Externí odkaz:
http://arxiv.org/abs/2310.03448
Autor:
Shahbandeh, Melissa, Sarangi, Arkaprabha, Temim, Tea, Szalai, Tamas, Fox, Ori D., Tinyanont, Samaporn, Dwek, Eli, Dessart, Luc, Filippenko, Alexei V., Brink, Thomas G., Foley, Ryan J., Jencson, Jacob, Pierel, Justin, Zsiros, Szanna, Rest, Armin, Zheng, WeiKang, Andrews, Jennifer, Clayton, Geoffrey C., De, Kishalay, Engesser, Michael, Gezari, Suvi, Gomez, Sebastian, Gonzaga, Shireen, Johansson, Joel, Kasliwal, Mansi, Lau, Ryan, De Looze, Ilse, Marston, Anthony, Milisavljevic, Dan, O'Steen, Richard, Siebert, Matthew, Skrutskie, Michael, Smith, Nathan, Strolger, Lou, Van Dyk, Schuyler D., Wang, Qinan, Williams, Brian, Williams, Robert, Xiao, Lin
Supernova (SN) explosions have been sought for decades as a possible source of dust in the Universe, providing the seeds of galaxies, stars, and planetary systems. SN 1987A offers one of the most promising examples of significant SN dust formation, b
Externí odkaz:
http://arxiv.org/abs/2301.10778
Autor:
Sarangi, Arkaprabha
Publikováno v:
A&A 668, A57 (2022)
Large discrepancies are found between observational estimates and theoretical predictions when exploring the characteristics of dust formed in the ejecta of core-collapse supernovae. We revisit the scenario of dust production in typical supernova eje
Externí odkaz:
http://arxiv.org/abs/2209.14896
Autor:
Sarangi, Arkaprabha, Slavin, Jonathan
In supernovae (SNe), where the light curves show evidence of strong and early interaction between the ejecta and the circumstellar matter (CSM), the formation of new dust is estimated to take place in a dense shell of gas between the forward (FS) and
Externí odkaz:
http://arxiv.org/abs/2205.08352
Autor:
Dwek, Eli, Sarangi, Arkaprabha, Arendt, Richard G., Kallman, Timothy, Kazanas, Demos, Fox, Ori D.
SN 2010jl is a Type IIn core collapse supernova whose radiative output is powered by the interaction of the SN shock wave with its surrounding dense circumstellar medium (CSM). After day ~60, its light curve developed a NIR excess emission from dust.
Externí odkaz:
http://arxiv.org/abs/2106.06531
Infrared observations of active galactic nucleus (AGN) reveal emission from the putative dusty circumnuclear 'torus' invoked by AGN unification, that is heated up by radiation from the central accreting black hole (BH). The strong 9.7 and 18 micron s
Externí odkaz:
http://arxiv.org/abs/1909.10426
Autor:
Rho, Jeonghee, Milisavljevic, Danny, Sarangi, Arkaprabha, Margutti, Raffaella, Chornock, Ryan, Rest, Armin, Graham, Melissa, Wheeler, J. Craig, DePoy, Darren, Wang, Lifan, Marshall, Jennifer, Williams, Grant, Street, Rachel, Skidmore, Warren, Haojing, Yan, Bloom, Joshua, Starrfield, Sumner, Lee, Chien-Hsiu, Cowperthwaite, Philip S., Stringfellow, Guy S., Coppejans, Deanne, Terreran, Giacomo, Sravan, Niharika, Geballe, Thomas R., Evans, Aneurin, Marion, Howie
Whether supernovae are a significant source of dust has been a long-standing debate. The large quantities of dust observed in high-redshift galaxies raise a fundamental question as to the origin of dust in the Universe since stars cannot have evolved
Externí odkaz:
http://arxiv.org/abs/1904.08485
Autor:
Rau, Gioia, Montez Jr., Rodolfo, Carpenter, Kenneth G., Wittkowski, Markus, Bladh, Sara, Karovska, Margarita, Airapetian, Vladimir, Ayres, Tom, Boyer, Martha, Chiavassa, Andrea, Clayton, Geoffrey, Danchi, William, De Marco, Orsola, Dupree, Andrea K., Kaminski, Tomasz, Kastner, Joel H., Kerschbaum, Franz, Linsky, Jeffrey, Lopez, Bruno, Monnier, John, Montargès, Miguel, Nielsen, Krister, Ohnaka, Keiichi, Ramstedt, Sofia, Roettenbacher, Rachael, Brummelaar, Theo ten, Paladini, C., Sarangi, Arkaprabha, van Belle, Gerard, Ventura, Paolo
Cool, evolved stars are the main source of chemical enrichment of the interstellar medium (ISM), and understanding their mass loss and structure offers a unique opportunity to study the cycle of matter in the Universe. Pulsation, convection, and othe
Externí odkaz:
http://arxiv.org/abs/1903.04585