Results 81 to 90 of about 695 (169)

Early-phase Simultaneous Multiband Observations of the Type II Supernova SN 2024ggi with Mephisto

The Astrophysical Journal Letters
We present early-phase good-cadence (hour-to-day) simultaneous multiband ( ugi and vrz bands) imaging of the nearby supernova SN 2024ggi, which exploded in the nearby galaxy NGC 3621.
Xinlei Chen, Brajesh Kumar, Xinzhong Er, Helong Guo, Yuan-Pei Yang, Weikang Lin, Yuan Fang, Guowang Du, Chenxu Liu, Jiewei Zhao, Tianyu Zhang, Yuxi Bao, Xingzhu Zou, Yu Pan, Yu Wang, Xufeng Zhu, Kaushik Chatterjee, Xiangkun Liu, Dezi Liu, Edoardo P. Lagioia, Geeta Rangwal, Shiyan Zhong, Jinghua Zhang, Jianhui Lian, Yongzhi Cai, Yangwei Zhang, Xiaowei Liu   +26 more
doaj   +1 more source

Diversity in Hydrogen-rich Envelope Mass of Type II Supernovae. III. The Mass-loss and Evolutionary Pathways of the Red Supergiant Progenitors

The Astrophysical Journal
We present a comprehensive analysis of 32 type II supernovae (SNe II) with plateau phase photometry and late phase ( nebular ) spectroscopy available, aiming to bridge the gap between the surface and core of their red supergiant (RSG) progenitors.
Qiliang Fang, Takashi J. Moriya, Keiichi Maeda, Andris Dorozsmai, Javier Silva-Farfán   +4 more
doaj   +1 more source

Phosphorus-bearing molecules PO and PN at the edge of the Galaxy. [PDF]

Nature, 2023
Koelemay LA, Gold KR, Ziurys LM.
europepmc   +1 more source

Uncovering a population of gravitational lens galaxies with magnified standard candle SN Zwicky. [PDF]

Nat Astron, 2023
Goobar A, Johansson J, Schulze S, Arendse N, Carracedo AS, Dhawan S, Mörtsell E, Fremling C, Yan L, Perley D, Sollerman J, Joseph R, Hinds KR, Meynardie W, Andreoni I, Bellm E, Bloom J, Collett TE, Drake A, Graham M, Kasliwal M, Kulkarni SR, Lemon C, Miller AA, Neill JD, Nordin J, Pierel J, Richard J, Riddle R, Rigault M, Rusholme B, Sharma Y, Stein R, Stewart G, Townsend A, Vinko J, Wheeler JC, Wold A.   +37 more
europepmc   +1 more source

ATClean: A Novel Method for Detecting Low-luminosity Transients and Application to Pre-explosion Counterparts from SN 2023ixf

The Astrophysical Journal
In an effort to search for faint sources of emission over arbitrary timescales, we present a novel method for analyzing forced photometry light curves in difference imaging from optical surveys. Our method “ATLAS Clean,” or ATClean, utilizes the reported
S. Rest, A. Rest, C. D. Kilpatrick, J. E. Jencson, S. von Coelln, L. Strolger, S. Smartt, J. P. Anderson, A. Clocchiatti, D. A. Coulter, L. Denneau, S. Gomez, A. Heinze, R. Ridden-Harper, K. W. Smith, B. Stalder, J. L. Tonry, Q. Wang, Y. Zenati   +18 more
doaj   +1 more source

Cosmological Distance Measurement of Twelve Nearby Supernovae IIP with ROTSE-IIIb

The Astrophysical Journal
We present cosmological analysis of 12 nearby ( z < 0.06) Type IIP supernovae (SNe IIP) observed with the ROTSE-IIIb telescope. To achieve precise photometry, we present a new image-differencing technique that is implemented for the first time on the ...
G. Dhungana, R. Kehoe, R. Staten, J. Vinko, J. C. Wheeler, C. Akerlof, D. Doss, F. V. Ferrante, C. A. Gibson, J. Lasker, G. H. Marion, S. B. Pandey, R. M. Quimby, E. Rykoff, D. Smith, F. Yuan, W. Zheng   +16 more
doaj   +1 more source

A helium-burning white dwarf binary as a supersoft X-ray source. [PDF]

Nature, 2023
Greiner J, Maitra C, Haberl F, Willer R, Burgess JM, Langer N, Bodensteiner J, Buckley DAH, Monageng IM, Udalski A, Ritter H, Werner K, Maggi P, Jayaraman R, Vanderspek R.   +14 more
europepmc   +1 more source

A persistent influence of supernovae on biodiversity over the Phanerozoic. [PDF]

Ecol Evol, 2023
Svensmark H.
europepmc   +1 more source

Nucleation experiments on a titanium-carbon system imply nonclassical formation of presolar grains. [PDF]

Sci Adv, 2023
Kimura Y, Tanaka KK, Inatomi Y, Aktas C, Blum J.   +4 more
europepmc   +1 more source

Superluminous supernovae: diverse rise times explain diverse spectra. [PDF]

Astrophys Space Sci
Nicholl M.
europepmc   +1 more source