Zobrazeno 1 - 10
of 700
pro vyhledávání: '"J. Hjorth"'
Autor:
J. D. R. Pierel, A. B. Newman, S. Dhawan, M. Gu, B. A. Joshi, T. Li, S. Schuldt, L. G. Strolger, S. H. Suyu, G. B. Caminha, S. H. Cohen, J. M. Diego, J. C. J. DŚilva, S. Ertl, B. L. Frye, G. Granata, C. Grillo, A. M. Koekemoer, J. Li, A. Robotham, J. Summers, T. Treu, R. A. Windhorst, A. Zitrin, S. Agarwal, A. Agrawal, N. Arendse, S. Belli, C. Burns, R. Cañameras, S. Chakrabarti, W. Chen, T. E. Collett, D. A. Coulter, R. S. Ellis, M. Engesser, N. Foo, O. D. Fox, C. Gall, N. Garuda, S. Gezari, S. Gomez, K. Glazebrook, J. Hjorth, X. Huang, S. W. Jha, P. S. Kamieneski, P. Kelly, C. Larison, L. A. Moustakas, M. Pascale, I. Pérez-Fournon, T. Petrushevska, F. Poidevin, A. Rest, M. Shahbandeh, A. J. Shajib, M. Siebert, C. Storfer, M. Talbot, Q. Wang, T. Wevers, Y. Zenati
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 2, p L37 (2024)
A bright ( m _F150W,AB = 24 mag), z = 1.95 supernova (SN) candidate was discovered in JWST/NIRCam imaging acquired on 2023 November 17. The SN is quintuply imaged as a result of strong gravitational lensing by a foreground galaxy cluster, detected in
Externí odkaz:
https://doaj.org/article/2158c50abcc04d72963ef0b011df2e1a
Autor:
K. I. Caputi, P. Rinaldi, E. Iani, P. G. Pérez-González, G. Östlin, L. Colina, T. R. Greve, H. U. Nørgaard-Nielsen, G. S. Wright, J. Álvarez-Márquez, A. Eckart, J. Hjorth, A. Labiano, O. Le Fèvre, F. Walter, P. van der Werf, L. Boogaard, L. Costantin, A. Crespo Gómez, S. Gillman, I. Jermann, D. Langeroodi, J. Melinder, F. Peissker, M. Güdel, Th. Henning, P. O. Lagage, T. P. Ray
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 2, p 159 (2024)
We investigate the properties of strong (H β + [O iii ]) emitters before and after the end of the “Epoch of Reionization” from z = 8 to z = 5.5. We make use of ultradeep JWST / NIRCam imaging in the parallel field (P2) of the MIRI Deep Imaging S
Externí odkaz:
https://doaj.org/article/5319802472844334b1516c6b4d57f021
Autor:
P. Rinaldi, K. I. Caputi, E. Iani, L. Costantin, S. Gillman, P. G. Perez Gonzalez, G. Östlin, L. Colina, T. R. Greve, H. U. Nørgard-Nielsen, G. S. Wright, J. Álvarez-Márquez, A. Eckart, M. García-Marín, J. Hjorth, O. Ilbert, S. Kendrew, A. Labiano, O. Le Fèvre, J. Pye, T. Tikkanen, F. Walter, P. van der Werf, M. Ward, M. Annunziatella, R. Azzollini, A. Bik, L. Boogaard, S. E. I. Bosman, A. Crespo Gómez, I. Jermann, D. Langeroodi, J. Melinder, R. A. Meyer, T. Moutard, F. Peissker, E. van Dishoeck, M. Güdel, Th. Henning, P.-O. Lagage, T. Ray, B. Vandenbussche, C. Waelkens, Pratika Dayal
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 1, p 12 (2024)
By using an ultradeep JWST/MIRI image at 5.6 μ m in the Hubble eXtreme Deep Field, we constrain the role of strong H α emitters (HAEs) during “cosmic reionization” at z ≃ 7–8. Our sample of HAEs is comprised of young (
Externí odkaz:
https://doaj.org/article/ed1420ab6cf5413f93017aa975eb17b4
Autor:
J. D. R. Pierel, B. L. Frye, M. Pascale, G. B. Caminha, W. Chen, S. Dhawan, D. Gilman, M. Grayling, S. Huber, P. Kelly, S. Thorp, N. Arendse, S. Birrer, M. Bronikowski, R. Cañameras, D. Coe, S. H. Cohen, C. J. Conselice, S. P. Driver, J. C. J. DŚilva, M. Engesser, N. Foo, C. Gall, N. Garuda, C. Grillo, N. A. Grogin, J. Henderson, J. Hjorth, R. A. Jansen, J. Johansson, P. S. Kamieneski, A. M. Koekemoer, C. Larison, M. A. Marshall, L. A. Moustakas, M. Nonino, R. Ortiz III, T. Petrushevska, N. Pirzkal, A. Robotham, R. E. Ryan Jr., S. Schuldt, L. G. Strolger, J. Summers, S. H. Suyu, T. Treu, C. N. A. Willmer, R. A. Windhorst, H. Yan, A. Zitrin, A. Acebron, S. Chakrabarti, D. A. Coulter, O. D. Fox, X. Huang, S. W. Jha, G. Li, P. A. Mazzali, A. K. Meena, I. Pérez-Fournon, F. Poidevin, A. Rest, A. G. Riess
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 1, p 50 (2024)
Supernova (SN) SN H0pe is a gravitationally lensed, triply imaged, Type Ia SN (SN Ia) discovered in James Webb Space Telescope imaging of the PLCK G165.7+67.0 cluster of galaxies. Well-observed multiply imaged SNe provide a rare opportunity to constr
Externí odkaz:
https://doaj.org/article/5060013de8ee41a58fc63301fe908ece
Autor:
P. Bouchet, R. Gastaud, A. Coulais, M. J. Barlow, C. Fransson, P. J. Kavanagh, J. Larsson, T. Temim, O. C. Jones, A. S. Hirschauer, T. Tikkanen, J. A. D. L. Blommaert, O. D. Fox, A. Glasse, N. Habel, J. Hjorth, J. Jaspers, O. Krause, R. M. Lau, L. Lenkić, M. Meixner, O. Nayak, A. Rest, B. Sargent, R. Wesson, G. S. Wright, L. Colina, E. F. van Dishoeck, M. Güdel, Th. Henning, P.-O. Lagage, G. Östlin, T. P. Ray, B. Vandenbussche
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 1, p 51 (2024)
There exist very few mid-infrared (IR) observations of supernovae (SNe) in general. Therefore, SN 1987A, the closest visible SN in 400 yr, gives us the opportunity to explore the mid-IR properties of SNe, the dust in their ejecta, and the surrounding
Externí odkaz:
https://doaj.org/article/523ede7d35f64fc8a49e9fd61097e41d
Autor:
Michał J. Michałowski, C. Gall, J. Hjorth, D. T. Frayer, A.-L. Tsai, K. Rowlands, T. T. Takeuchi, A. Leśniewska, D. Behrendt, N. Bourne, D. H. Hughes, M. P. Koprowski, J. Nadolny, O. Ryzhov, M. Solar, E. Spring, J. Zavala, P. Bartczak
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 2, p 129 (2024)
Understanding how galaxies quench their star formation is crucial for studies of galaxy evolution. Quenching is related to a decrease of cold gas. In the first paper we showed that the dust removal timescale in early-type galaxies (ETGs) is about 2.5
Externí odkaz:
https://doaj.org/article/cc99dad7ac0747acaf0ed9c7701a2d43
Autor:
W. V. Jacobson-Galán, L. Dessart, R. Margutti, R. Chornock, R. J. Foley, C. D. Kilpatrick, D. O. Jones, K. Taggart, C. R. Angus, S. Bhattacharjee, L. A. Braff, D. Brethauer, A. J. Burgasser, F. Cao, C. M. Carlile, K. C. Chambers, D. A. Coulter, E. Dominguez-Ruiz, C. B. Dickinson, T. de Boer, A. Gagliano, C. Gall, H. Gao, E. L. Gates, S. Gomez, M. Guolo, M. R. J. Halford, J. Hjorth, M. E. Huber, M. N. Johnson, P. R. Karpoor, T. Laskar, N LeBaron, Z. Li, Y. Lin, S. D. Loch, P. D. Lynam, E. A. Magnier, P. Maloney, D. J. Matthews, M. McDonald, H.-Y. Miao, D. Milisavljevic, Y.-C. Pan, S. Pradyumna, C. L. Ransome, J. M. Rees, A. Rest, C. Rojas-Bravo, N. R. Sandford, L. Sandoval Ascencio, S. Sanjaripour, A. Savino, H. Sears, N. Sharei, S. J. Smartt, E. R. Softich, C. A. Theissen, S. Tinyanont, H. Tohfa, V. A. Villar, Q. Wang, R. J. Wainscoat, A. L. Westerling, E. Wiston, M. A. Wozniak, S. K. Yadavalli, Y. Zenati
Publikováno v:
The Astrophysical Journal Letters, Vol 954, Iss 2, p L42 (2023)
We present UV and/or optical observations and models of SN 2023ixf, a type II supernova (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 , H
Externí odkaz:
https://doaj.org/article/4ff43153604a43dca8633eb8456e0f8e
Autor:
J. Larsson, C. Fransson, B. Sargent, O. C. Jones, M. J. Barlow, P. Bouchet, M. Meixner, J. A. D. L. Blommaert, A. Coulais, O. D. Fox, R. Gastaud, A. Glasse, N. Habel, A. S. Hirschauer, J. Hjorth, J. Jaspers, P. J. Kavanagh, O. Krause, R. M. Lau, L. Lenkić, O. Nayak, A. Rest, T. Temim, T. Tikkanen, R. Wesson, G. S. Wright
Publikováno v:
The Astrophysical Journal Letters, Vol 949, Iss 2, p L27 (2023)
We present initial results from JWST NIRSpec integral field unit observations of the nearby supernova SN 1987A. The observations provide the first spatially resolved spectroscopy of the ejecta and equatorial ring (ER) over the 1–5 μ m range. We co
Externí odkaz:
https://doaj.org/article/4c718bd7bd004042b3c8166ca3ee0cce
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
Autor:
A. J. Levan, G. P. Lamb, B. Schneider, J. Hjorth, T. Zafar, A. de Ugarte Postigo, B. Sargent, S. E. Mullally, L. Izzo, P. D’Avanzo, E. Burns, J. F. Agüí Fernández, T. Barclay, M. G. Bernardini, K. Bhirombhakdi, M. Bremer, R. Brivio, S. Campana, A. A. Chrimes, V. D’Elia, M. Della Valle, M. De Pasquale, M. Ferro, W. Fong, A. S. Fruchter, J. P. U. Fynbo, N. Gaspari, B. P. Gompertz, D. H. Hartmann, C. L. Hedges, K. E. Heintz, K. Hotokezaka, P. Jakobsson, D. A. Kann, J. A. Kennea, T. Laskar, E. Le Floc’h, D. B. Malesani, A. Melandri, B. D. Metzger, S. R. Oates, E. Pian, S. Piranomonte, G. Pugliese, J. L. Racusin, J. C. Rastinejad, M. E. Ravasio, A. Rossi, A. Saccardi, R. Salvaterra, B. Sbarufatti, R. L. C. Starling, N. R. Tanvir, C. C. Thöne, A. J. van der Horst, S. D. Vergani, D. Watson, K. Wiersema, R. A. M. J. Wijers, Dong Xu
Publikováno v:
The Astrophysical Journal Letters, Vol 946, Iss 1, p L28 (2023)
We present James Webb Space Telescope (JWST) and Hubble Space Telescope (HST) observations of the afterglow of GRB 221009A, the brightest gamma-ray burst (GRB) ever observed. This includes the first mid-IR spectra of any GRB, obtained with JWST/Near
Externí odkaz:
https://doaj.org/article/e0b6ea15557a457382411275e35f81e1