Zobrazeno 1 - 10
of 891
pro vyhledávání: '"L, Piro"'
Publikováno v:
The Open Journal of Astrophysics, Vol 7 (2024)
Binary mass transfer can occur at high rates due to rapid expansion of the donor's envelope. In the case where mass transfer is unstable, the binary can rapidly shrink its orbit and lead to a merger. In this work we consider the appearance of the sys
Externí odkaz:
https://doaj.org/article/5f82e4ff80e54b908a05d2316d1ef107
Autor:
W. V. Jacobson-Galán, L. Dessart, K. W. Davis, C. D. Kilpatrick, R. Margutti, R. J. Foley, R. Chornock, G. Terreran, D. Hiramatsu, M. Newsome, E. Padilla Gonzalez, C. Pellegrino, D. A. Howell, A. V. Filippenko, J. P. Anderson, C. R. Angus, K. Auchettl, K. A. Bostroem, T. G. Brink, R. Cartier, D. A. Coulter, T. de Boer, M. R. Drout, N. Earl, K. Ertini, J. R. Farah, D. Farias, C. Gall, H. Gao, M. A. Gerlach, F. Guo, A. Haynie, G. Hosseinzadeh, A. L. Ibik, S. W. Jha, D. O. Jones, D. Langeroodi, N LeBaron, E. A. Magnier, A. L. Piro, S. I. Raimundo, A. Rest, S. Rest, R. Michael Rich, C. Rojas-Bravo, H. Sears, K. Taggart, V. A. Villar, R. J. Wainscoat, X-F. Wang, A. R. Wasserman, S. Yan, Y. Yang, J. Zhang, W. Zheng
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 2, p 189 (2024)
We present ultraviolet/optical/near-infrared observations and modeling of Type II supernovae (SNe II) whose early time ( δ t < 2 days) spectra show transient, narrow emission lines from shock ionization of confined ( r < 10 ^15 cm) circumstellar mat
Externí odkaz:
https://doaj.org/article/7711e3df842043628c6f68c655b651fb
Autor:
Jhon Yana Galarza, Thiago Ferreira, Diego Lorenzo-Oliveira, Joshua D. Simon, Henrique Reggiani, Anthony L. Piro, R. Paul Butler, Yuri Netto, Adriana Valio, David R. Ciardi, Boris Safonov
Publikováno v:
The Astronomical Journal, Vol 168, Iss 2, p 91 (2024)
Among Neptunian mass exoplanets (20−50 M _⊕ ), puffy hot Neptunes are extremely rare, and their unique combination of low mass and extended radii implies very low density ( ρ < 0.3 g cm ^−3 ). Over the last decade, only a few puffy planets hav
Externí odkaz:
https://doaj.org/article/4d41044a9f3b47d594bfb26b51810b6d
Autor:
Syed A. Uddin, Christopher R. Burns, M M. Phillips, Nicholas B. Suntzeff, Wendy L. Freedman, Peter J. Brown, Nidia Morrell, Mario Hamuy, Kevin Krisciunas, Lifan Wang, Eric Y. Hsiao, Ariel Goobar, Saul Perlmutter, Jing Lu, Maximilian Stritzinger, Joseph P. Anderson, Chris Ashall, Peter Hoeflich, Benjamin J. Shappee, S. E. Persson, Anthony L. Piro, E Baron, Carlos Contreras, Lluís Galbany, Sahana Kumar, Melissa Shahbandeh, Scott Davis, Jorge Anais, Luis Busta, Abdo Campillay, Sergio Castellón, Carlos Corco, Tiara Diamond, Christa Gall, Consuelo Gonzalez, Simon Holmbo, Miguel Roth, Jacqueline Serón, Francesco Taddia, Simón Torres, Charles Baltay, Gastón Folatelli, Ellie Hadjiyska, Mansi Kasliwal, Peter E. Nugent, David Rabinowitz, Stuart D. Ryder
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 1, p 72 (2024)
We present an analysis of Type Ia supernovae (SNe Ia) from the Carnegie Supernova Project I and II and extend the Hubble diagram from optical to near-infrared wavelengths ( uBgVriYJH ). We calculate the Hubble constant, H _0 , using various distance
Externí odkaz:
https://doaj.org/article/28e475ec0cc9466b88a955ded83817d5
Autor:
M. M. Phillips, C. Ashall, Peter J. Brown, L. Galbany, M. A. Tucker, Christopher R. Burns, Carlos Contreras, P. Hoeflich, E. Y. Hsiao, S. Kumar, Nidia Morrell, Syed A. Uddin, E. Baron, Wendy L. Freedman, Kevin Krisciunas, S. E. Persson, Anthony L. Piro, B. J. Shappee, Maximilian Stritzinger, Nicholas B. Suntzeff, Sudeshna Chakraborty, R. P. Kirshner, J. Lu, G. H. Marion, Abigail Polin, M. Shahbandeh
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 273, Iss 1, p 16 (2024)
Understanding the nature of the luminous 1991T-like supernovae (SNe) is of great importance to SN cosmology as they are likely to have been more common in the early Universe. In this paper, we explore the observational properties of 1991T-like SNe to
Externí odkaz:
https://doaj.org/article/dbe06b3e90f1435ca94b0c0ecf9a4b4f
Autor:
N. Morrell, M. M. Phillips, G. Folatelli, M. D. Stritzinger, M. Hamuy, N. B. Suntzeff, E. Y. Hsiao, F. Taddia, C. R. Burns, P. Hoeflich, C. Ashall, C. Contreras, L. Galbany, J. Lu, A. L. Piro, J. Anais, E. Baron, A. Burrow, L. Busta, A. Campillay, S. Castellón, C. Corco, T. Diamond, W. L. Freedman, C. Gonzalez, K. Krisciunas, S. Kumar, S. E. Persson, J. Serón, M. Shahbandeh, S. Torres, S. A. Uddin, J. P. Anderson, C. Baltay, C. Gall, A. Goobar, E. Hadjiyska, S. Holmbo, M. Kasliwal, C. Lidman, G. H. Marion, P. A. Mazzali, P. Nugent, S. Perlmutter, G. Pignata, D. Rabinowitz, M. Roth, S. D. Ryder, B. J. Shappee, J. Vinkó, J. C. Wheeler, T. de Jaeger, P. Lira, M. T. Ruiz, J. A. Rich, J. L. Prieto, F. Di Mille, D. Osip, G. Blanc, P. Palunas
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 1, p 20 (2024)
We present the second and final release of optical spectroscopy of Type Ia supernovae (SNe Ia) obtained during the first and second phases of the Carnegie Supernova Project (CSP-I and CSP-II). The newly released data consist of 148 spectra of 30 SNe
Externí odkaz:
https://doaj.org/article/ab047d118a8b4e89956a76bfff670f10
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 139 (2024)
We collect a sample of 42 Type Ia supernovae (SNe Ia) with Swift UV photometry and well-measured early time light-curve rises and find that 2002es-like and 2003fg-like SNe Ia have different prepeak UV color evolutions compared to normal SNe Ia and ot
Externí odkaz:
https://doaj.org/article/fc957c84f8204f18bc6155a50f894746
Autor:
Qinan Wang, Armin Rest, Georgios Dimitriadis, Ryan Ridden-Harper, Matthew R. Siebert, Mark Magee, Charlotte R. Angus, Katie Auchettl, Kyle W. Davis, Ryan J. Foley, Ori D. Fox, Sebastian Gomez, Jacob E. Jencson, David O. Jones, Charles D. Kilpatrick, Justin D. R. Pierel, Anthony L. Piro, Abigail Polin, Collin A. Politsch, César Rojas-Bravo, Melissa Shahbandeh, V. Ashley Villar, Yossef Zenati, C. Ashall, Kenneth C. Chambers, David A. Coulter, Thomas de Boer, Nico DiLullo, Christa Gall, Hua Gao, Eric Y. Hsiao, Mark E. Huber, Luca Izzo, Nandita Khetan, Natalie LeBaron, Eugene A. Magnier, Kaisey S. Mandel, Peter McGill, Hao-Yu Miao, Yen-Chen Pan, Catherine P. Stevens, Jonathan J. Swift, Kirsty Taggart, Grace Yang
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 1, p 17 (2024)
We present high-cadence ultraviolet through near-infrared observations of the Type Ia supernova (SN Ia) 2023bee at D = 32 ± 3 Mpc, finding excess flux in the first days after explosion, particularly in our 10 minutes cadence TESS light curve and Swi
Externí odkaz:
https://doaj.org/article/ef3c92af085c4743aec5757c509585b2
Autor:
Charles D. Kilpatrick, Ryan J. Foley, Wynn V. Jacobson-Galán, Anthony L. Piro, Stephen J. Smartt, Maria R. Drout, Alexander Gagliano, Christa Gall, Jens Hjorth, David O. Jones, Kaisey S. Mandel, Raffaella Margutti, Enrico Ramirez-Ruiz, Conor L. Ransome, V. Ashley Villar, David A. Coulter, Hua Gao, David Jacob Matthews, Kirsty Taggart, Yossef Zenati
Publikováno v:
The Astrophysical Journal Letters, Vol 952, Iss 1, p L23 (2023)
We present preexplosion optical and infrared (IR) imaging at the site of the type II supernova (SN II) 2023ixf in Messier 101 at 6.9 Mpc. We astrometrically registered a ground-based image of SN 2023ixf to archival Hubble Space Telescope (HST), Spitz
Externí odkaz:
https://doaj.org/article/d9821e58b9874e248959c9b36412f64b
Autor:
M. D. Fulton, S. J. Smartt, L. Rhodes, M. E. Huber, V. A. Villar, T. Moore, S. Srivastav, A. S. B. Schultz, K. C. Chambers, L. Izzo, J. Hjorth, T.-W. Chen, M. Nicholl, R. J. Foley, A. Rest, K. W. Smith, D. R. Young, S. A. Sim, J. Bright, Y. Zenati, T. de Boer, J. Bulger, J. Fairlamb, H. Gao, C.-C. Lin, T. Lowe, E. A. Magnier, I. A. Smith, R. Wainscoat, D. A. Coulter, D. O. Jones, C. D. Kilpatrick, P. McGill, E. Ramirez-Ruiz, K.-S. Lee, G. Narayan, V. Ramakrishnan, R. Ridden-Harper, A. Singh, Q. Wang, A. K. H. Kong, C.-C. Ngeow, Y.-C. Pan, S. Yang, K. W. Davis, A. L. Piro, C. Rojas-Bravo, J. Sommer, S. K. Yadavalli
Publikováno v:
The Astrophysical Journal Letters, Vol 946, Iss 1, p L22 (2023)
We present extensive optical photometry of the afterglow of GRB 221009A. Our data cover 0.9–59.9 days from the time of Swift and Fermi gamma-ray burst (GRB) detections. Photometry in rizy -band filters was collected primarily with Pan-STARRS and su
Externí odkaz:
https://doaj.org/article/da56fce7e8d241779c80176e5350a774