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相关论文: Dust Models for the Extinction of Type IIn Superno…

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The physical characteristics of dust formed in supernovae is poorly known. In this paper, we investigate the extinction properties of dust formed in the type IIn SN 2005ip. The observed light curves of SN 2005ip all exhibit a sudden drop…

太阳与恒星天体物理 · 物理学 2018-03-28 Ann-Sofie Bak Nielsen , Jens Hjorth , Christa Gall

It is well known that the extinction properties along lines of sight to Type Ia supernovae are described by steep extinction curves with unusually low total-to-selective extinction ratios of Rv = 1.0-2.0. In order to reveal the properties…

星系天体物理 · 物理学 2016-12-07 Takaya Nozawa

Recent JWST observations have revealed that some galaxies at $z \gtrsim 7$ generally exhibit relatively flat ultraviolet (UV) attenuation curves and a weak UV bump. These features suggest that the first dust grains formed rapidly, possibly…

The origin of dust in galaxies is still a mystery. The majority of the refractory elements are produced in supernova explosions but it is unclear how and where dust grains condense and grow, and how they avoid destruction in the harsh…

太阳与恒星天体物理 · 物理学 2014-07-17 Christa Gall , Jens Hjorth , Darach Watson , Eli Dwek , Justyn R. Maund , Ori Fox , Giorgos Leloudas , Daniele Malesani , Avril C. Day-Jones

Supernovae (SNe) have been proposed to be the main production sites of dust grains in the Universe. Our knowledge on their importance to dust production is, however, limited by observationally poor constraints on the nature and amount of…

Type Ia supernovae (SNe Ia) are powerful cosmological "standardizable candles" and the most precise distance indicators. However, a limiting factor in their use for precision cosmology rests on our ability to correct for the dust extinction…

高能天体物理现象 · 物理学 2015-07-15 Jian Gao , B. W. Jiang , Aigen Li , Jun Li , Xiaofeng Wang

The luminous Type IIn Supernova (SN) 2010jl shows strong evidence for the interaction of the SN ejecta with dense circumstellar material (CSM). We present observations of SN 2010jl for $t \sim 900$ d after its earliest detection, including…

高能天体物理现象 · 物理学 2016-01-27 J. E. Jencson , J. L. Prieto , C. S. Kochanek , B. J. Shappee , K. Z. Stanek , R. W. Pogge

We investigate the extinction curves of young galaxies in which dust is supplied from Type II supernovae (SNe II) and/or pair instability supernovae (PISNe). We adopt Nozawa et al. (2003) for compositions and size distribution of grains…

天体物理学 · 物理学 2009-11-10 Hiroyuki Hirashita , Takaya Nozawa , Takashi Kozasa , Takako T. Ishii , Tsutomu T. Takeuchi

Modern data of the extinction curve from the ultraviolet to the near infrared are revisited to study the property of dust grains in the Milky Way (MW) and the Small Magellanic Cloud (SMC). We confirm that the graphite-silicate mixture of…

星系天体物理 · 物理学 2015-06-12 Takaya Nozawa , Masataka Fukugita

We apply the supernova(SN) extinction curves to reproduce the observed properties of SST J1604+4304 which is a young infrared (IR) galaxy at z = 1. The SN extinction curves used in this work were obtained from models of unmixed ejecta of…

宇宙学与河外天体物理 · 物理学 2015-05-20 K. Kawara , H. Hirashita , T. Nozawa , T. Kozasa , S. Oyabu , Y. Matsuoka , T. Shimizu , H. Sameshima , N. Ienaka

Core-collapse supernovae (CC SNe), especially Type II-Plateau ones, are thought to be important contributors to cosmic dust production. SN 2004dj, one of the closest and brightest SN since 1987A, offered a good opportunity to examine dust…

太阳与恒星天体物理 · 物理学 2015-05-20 T. Szalai , J. Vinkó , Z. Balog , A. Gáspár , M. Block , L. L. Kiss

A search for the progenitor of SN~2010jl, an unusually luminous core-collapse supernova of Type~IIn, using pre-explosion {\it Hubble}/WFPC2 and {\it Spitzer}/IRAC images of the region, yielded upper limits on the UV and near-infrared (IR)…

The presence of dust at high redshift requires efficient condensation of grains in SN ejecta, in accordance with current theoretical models. Yet, observations of the few well studied SNe and SN remnants imply condensation efficiencies which…

天体物理学 · 物理学 2009-06-23 S. Bianchi , R. Schneider

The dust extinction curves toward individual sight lines in M33 are derived for the first time with a sample of reddened O-type and B-type supergiants obtained from the LGGS. The observed photometric data are obtained from the LGGS, PS1…

星系天体物理 · 物理学 2022-06-29 Yuxi Wang , Jian Gao , Yi Ren , Bingqiu Chen

In this paper we present and discuss a new Monte Carlo approach aimed at correcting the observed Supernova (SN) rates for the effects of host galaxy dust extinction. The problem is addressed in a general way and the model includes SN…

天体物理学 · 物理学 2009-11-13 M. Riello , F. Patat

We investigate the extinction curves of young galaxies in which dust is supplied from Type II supernovae (SNe II) and/or pair instability supernovae (PISNe). Since at high redshift (z>5), low-mass stars cannot be dominant sources for dust…

天体物理学 · 物理学 2009-11-13 Hiroyuki Hirashita , Takaya Nozawa , Tsutomu T. Takeuchi , Takashi Kozasa

Recent photometric and polarimetric observations of type Ia supernovae (SNe Ia) show unusually low total-to-selective extinction ratio ($R_{V}<2$) and wavelength of maximum polarization ($\lambda_{max}<0.4\mu m$) for several SNe Ia, which…

星系天体物理 · 物理学 2017-03-08 Thiem Hoang

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…

高能天体物理现象 · 物理学 2021-09-01 Eli Dwek , Arkaprabha Sarangi , Richard G. Arendt , Timothy Kallman , Demos Kazanas , Ori D. Fox

Using photometric and spectroscopic data of Supernova (SN) 2012cu, a fairly reddened type Ia supernova, we derived its color excess curves and probed the dust extinction in its host galaxy, NGC 4772. In order to derive the extinction as a…

星系天体物理 · 物理学 2019-01-15 Weijia Gao , Ruining Zhao , Jian Gao , Biwei Jiang , Jun Li

We investigate the thermal emission and extinction from dust associated with the nearby superluminous supernova (SLSN) 2018bsz. Our dataset has daily cadence and simultaneous optical and near-infrared coverage up to ~ 100 days, together…

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