Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Christa Gall"'
Autor:
S. Karthik Yadavalli, V. Ashley Villar, Luca Izzo, Yossef Zenati, Ryan J. Foley, J. Craig Wheeler, Charlotte R. Angus, Dominik Bánhidi, Katie Auchettl, Barna Imre Bíró, Attila Bódi, Zsófia Bodola, Thomas de Boer, Kenneth C. Chambers, Ryan Chornock, David A. Coulter, István Csányi, Borbála Cseh, Srujan Dandu, Kyle W. Davis, Connor Braden Dickinson, Diego Farias, Joseph Farah, Christa Gall, Hua Gao, D. Andrew Howell, Wynn V. Jacobson-Galan, Nandita Khetan, Charles D. Kilpatrick, Réka Könyves-Tóth, Levente Kriskovics, Natalie LeBaron, Kayla Loertscher, X. K. Le Saux, Raffaella Margutti, Eugene A. Magnier, Curtis McCully, Peter McGill, Hao-Yu Miao, Megan Newsome, Estefania Padilla Gonzalez, András Pál, Boróka H. Pál, Yen-Chen Pan, Collin A. Politsch, Conor L. Ransome, Enrico Ramirez-Ruiz, Armin Rest, Sofia Rest, Olivia Robinson, Huei Sears, Jackson Scheer, Ádám Sódor, Jonathan Swift, Péter Székely, Róbert Szakáts, Tamás Szalai, Kirsty Taggart, Giacomo Terreran, Padma Venkatraman, József Vinkó, Grace Yang, Henry Zhou
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 2, p 194 (2024)
We present the photometric and spectroscopic evolution of SN 2022oqm, a nearby multipeaked hydrogen- and helium-weak calcium-rich transient (CaRT). SN 2022oqm was detected 13.1 kpc from its host galaxy, the face-on spiral galaxy NGC 5875. Extensive s
Externí odkaz:
https://doaj.org/article/4d10aa2627604741a9faa10435a19cd5
Autor:
Christa Gall, Jens Hjorth, Lise Christensen, Luca Izzo, Paolo A. Mazzali, Mark M. Phillips, Peter Hoeflich, Charlotte Angus, Cecilie Cold, Jonatan Selsing
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 114 (2024)
The origin of strong sodium absorption, which has been observed for a few nearby Type Ia supernovae (SNe Ia), remains elusive. Here we analyze two high-signal-to-noise, intermediate-resolution Very Large Telescope/X-shooter spectra at epochs +18 and
Externí odkaz:
https://doaj.org/article/4f50380813634bcca472da1c592651e6
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:
Conor L. Ransome, V. Ashley Villar, Anna Tartaglia, Sebastian Javier Gonzalez, Wynn V. Jacobson-Galán, Charles D. Kilpatrick, Raffaella Margutti, Ryan J. Foley, Matthew Grayling, Yuan Qi Ni, Ricardo Yarza, Christine Ye, Katie Auchettl, Thomas de Boer, Kenneth C. Chambers, David A. Coulter, Maria R. Drout, Diego Farias, Christa Gall, Hua Gao, Mark E. Huber, Adaeze L. Ibik, David O. Jones, Nandita Khetan, Chien-Cheng Lin, Collin A. Politsch, Sandra I. Raimundo, Armin Rest, Richard J. Wainscoat, S. Karthik Yadavalli, Yossef Zenati
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 1, p 93 (2024)
The nearby type II supernova, SN 2023ixf in M101 exhibits signatures of early time interaction with circumstellar material in the first week postexplosion. This material may be the consequence of prior mass loss suffered by the progenitor, which poss
Externí odkaz:
https://doaj.org/article/6fe0be97fa70470aa4ff482eb245f79b
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:
Richard G. Arendt, Martha L. Boyer, Eli Dwek, Mikako Matsuura, Aravind P. Ravi, Armin Rest, Roger Chevalier, Phil Cigan, Ilse De Looze, Guido De Marchi, Claes Fransson, Christa Gall, R. D. Gehrz, Haley L. Gomez, Tuomas Kangas, Florian Kirchschlager, Robert P. Kirshner, Josefin Larsson, Peter Lundqvist, Dan Milisavljevic, Sangwook Park, Nathan Smith, Jason Spyromilio, Tea Temim, Lifan Wang, J. Craig Wheeler, Charles E. Woodward
Publikováno v:
The Astrophysical Journal, Vol 959, Iss 2, p 95 (2023)
JWST Near Infrared Camera (NIRCam) observations at 1.5–4.5 μ m have provided broadband and narrowband imaging of the evolving remnant of SN 1987A with unparalleled sensitivity and spatial resolution. Comparing with previous marginally spatially re
Externí odkaz:
https://doaj.org/article/c1b4a2c811ad4c9293c3c0b2446249ad
Autor:
Jing Lu, Eric Y. Hsiao, Mark M. Phillips, Christopher R. Burns, Chris Ashall, Nidia Morrell, Lawrence Ng, Sahana Kumar, Melissa Shahbandeh, Peter Hoeflich, E. Baron, Syed Uddin, Maximilian D. Stritzinger, Nicholas B. Suntzeff, Charles Baltay, Scott Davis, Tiara R. Diamond, Gaston Folatelli, Francisco Förster, Jonathan Gagné, Lluís Galbany, Christa Gall, Santiago González-Gaitán, Simon Holmbo, Robert P. Kirshner, Kevin Krisciunas, G. H. Marion, Saul Perlmutter, Priscila J. Pessi, Anthony L. Piro, David Rabinowitz, Stuart D. Ryder, David J. Sand
Publikováno v:
The Astrophysical Journal, Vol 948, Iss 1, p 27 (2023)
We present the largest and most homogeneous collection of near-infrared (NIR) spectra of Type Ia supernovae (SNe Ia): 339 spectra of 98 individual SNe obtained as part of the Carnegie Supernova Project-II. These spectra, obtained with the FIRE spectr
Externí odkaz:
https://doaj.org/article/fead5fdc64f740d39746b3ef7daa3425
Autor:
Armin Rest, Anthony L. Piro, Lindsay DeMarchi, Jens Hjorth, Maria R. Drout, Christa Gall, Charles Kilpatrick, Ryan J. Foley, Enrico Ramirez-Ruiz, Katie Auchettl, Georgios Dimitriadis, Raffaella Margutti, K. Decker French, César Rojas-Bravo, Wynn V. Jacobson-Galán, David O. Jones
Publikováno v:
Kilpatrick, C D, Drout, M R, Auchettl, K, Dimitriadis, G, Foley, R J, Jones, D O, DeMarchi, L, French, K D, Gall, C, Hjorth, J, Jacobson-Galan, W, Margutti, R, Piro, A L, Ramirez-Ruiz, E, Rest, A & Rojas-Bravo, C 2021, ' A cool and inflated progenitor candidate for the Type Ib supernova 2019yvr at 2.6 yr before explosion ', Monthly Notices of the Royal Astronomical Society, vol. 504, no. 2, pp. 2073-2093 . https://doi.org/10.1093/mnras/stab838
We present Hubble Space Telescope imaging of a pre-explosion counterpart to SN 2019yvr obtained 2.6 years before its explosion as a type Ib supernova (SN Ib). Aligning to a post-explosion Gemini-S/GSAOI image, we demonstrate that there is a single so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::322f87b13607f336a07f70a50e0ade55
https://doi.org/10.1093/mnras/stab838
https://doi.org/10.1093/mnras/stab838
Autor:
Georgios Dimitriadis, Ryan J. Foley, Nikki Arendse, David A. Coulter, Wynn V. Jacobson-Galán, Matthew R. Siebert, Luca Izzo, David O. Jones, Charles D. Kilpatrick, Yen-Chen Pan, Kirsty Taggart, Katie Auchettl, Christa Gall, Jens Hjorth, Daniel Kasen, Anthony L. Piro, Sandra I. Raimundo, Enrico Ramirez-Ruiz, Armin Rest, Jonathan J. Swift, Stan E. Woosley
Publikováno v:
The Astrophysical Journal
Dimitriadis, G, Foley, R J, Arendse, N, Coulter, D A, Jacobson-Galan, W, Siebert, M R, Izzo, L, Jones, D O, Kilpatrick, C D, Pan, Y-C, Taggart, K, Auchettl, K, Gall, C, Hjorth, J, Kasen, D, Piro, A L, Raimundo, S, Ramirez-Ruiz, E, Rest, A, Swift, J J & Woosley, S E 2022, ' A Carbon/Oxygen-dominated Atmosphere Days after Explosion for the "Super-Chandrasekhar" Type Ia SN 2020esm ', Astrophysical Journal, vol. 927, no. 1, 78 . https://doi.org/10.3847/1538-4357/ac4780
Dimitriadis, G, Foley, R J, Arendse, N, Coulter, D A, Jacobson-Galan, W, Siebert, M R, Izzo, L, Jones, D O, Kilpatrick, C D, Pan, Y-C, Taggart, K, Auchettl, K, Gall, C, Hjorth, J, Kasen, D, Piro, A L, Raimundo, S, Ramirez-Ruiz, E, Rest, A, Swift, J J & Woosley, S E 2022, ' A Carbon/Oxygen-dominated Atmosphere Days after Explosion for the "Super-Chandrasekhar" Type Ia SN 2020esm ', Astrophysical Journal, vol. 927, no. 1, 78 . https://doi.org/10.3847/1538-4357/ac4780
Seeing pristine material from the donor star in a Type Ia supernova (SN Ia) explosion can reveal the nature of the binary system. In this paper, we present photometric and spectroscopic observations of SN 2020esm, one of the best-studied SNe of the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c21dbab2fc2456d6441e45294b373d65
https://eprints.soton.ac.uk/472098/
https://eprints.soton.ac.uk/472098/
