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Related papers: Cosmic evolution and metal aversion in super-lumin…

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Recent studies find that some early-type galaxies host Type II or Ibc supernovae (SNe II, Ibc). This may imply recent star-formation activities in these SNe host galaxies, but a massive star origin of the SNe Ib so far observed in…

Astrophysics of Galaxies · Physics 2015-05-27 Hyewon Suh , Sung-chul Yoon , Hyunjin Jeong , Sukyoung K. Yi

Supernova (SN) siblings -- two or more SNe in the same parent galaxy -- are useful tools for exploring progenitor stellar populations as well as properties of the host galaxies such as distance, star formation rate, dust extinction, and…

We investigate the influence of close neighbor galaxies on the properties of supernovae (SNe) and their host galaxies using 56 SNe located in pairs of galaxies with different levels of star formation (SF) and nuclear activity. The…

Cosmology and Nongalactic Astrophysics · Physics 2013-10-02 T. A. Nazaryan , A. R. Petrosian , A. A. Hakobyan , V. Z. Adibekyan , D. Kunth , G. A. Mamon , M. Turatto , L. S. Aramyan

We discuss the emerging trend that super-Chandrasekhar Type Ia Supernovae (SCSNe) with progenitor mass estimates significantly exceeding 1.4 M_sun tend to explode in metal-poor environments. While Taubenberger et al. 2011 noted that some of…

Solar and Stellar Astrophysics · Physics 2015-05-28 Rubab Khan , K. Z. Stanek , R. Stoll , J. L. Prieto

We present observations of two new hydrogen-poor superluminous supernovae (SLSN-I), iPTF15esb and iPTF16bad, showing late-time H-alpha emission with line luminosities of (1-3)e+41 erg/s and velocity widths of (4000-6000) km/s. Including the…

We present the stellar population properties of 13 dwarf galaxies residing in poor groups (low-density environment, LDE) observed with VIMOS@VLT. Ages, metallicities, and [alpha/Fe] ratios were derived from the Lick indices Hbeta, Mgb,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 F. Annibali , R. Grutzbauch , R. Rampazzo , A. Bressan , W. W. Zeilinger

We study the evolution of 82302 star-forming (SF) galaxies from the SDSS. Our main goals are to explore new ways of handling star formation histories (SFH) obtained with our publicly available spectral synthesis code STARLIGHT, and apply…

Aims: We present a quantitative study of a new data set of high redshift Type Ia supernovae spectra, observed at the Gemini telescopes during the first 34 months of the Supernova Legacy Survey. During this time 123 supernovae candidates…

We combine morphological classifications from deep HST imaging of a sample of 3 clusters at z=0.31 and a further 9 clusters at z=0.37-0.56 with existing spectroscopic observations of their E and S0 populations, to study the relative…

Astrophysics · Physics 2009-10-31 Lewis Jones , Ian Smail , Warrick J. Couch

We present GHOST, a database of 16,175 spectroscopically classified supernovae and the properties of their host galaxies. We have developed a host galaxy association method using image gradients that achieves fewer misassociations for low-z…

Astrophysics of Galaxies · Physics 2021-03-03 Alex Gagliano , Gautham Narayan , Andrew Engel , Matias Carrasco Kind

We present optical and near-infrared ($ugriYJH$) photometry of host galaxies of Type Ia supernovae (SN~Ia) observed by the \textit{Carnegie Supernova Project-I}. We determine host galaxy stellar masses and, for the first time, study their…

To study the effect of supermassive black holes (SMBHs) on their host galaxies it is important to study the hosts when the SMBH is near its peak activity. A method to investigate the host galaxies of high luminosity quasars is to obtain…

Astrophysics of Galaxies · Physics 2014-12-22 Gregory Mosby , Christy Tremonti , Eric Hooper , Marsha Wolf , Andrew Sheinis , Joseph Richards

We crossmatch galaxies from Mapping Nearby Galaxies at Apache Point Observatory with the Open Supernova Catalog, obtaining a total of 132 SNe within MaNGA bundle. These 132 SNe can be classified into 67 Type Ia and 65 Type CC. We study the…

Astrophysics of Galaxies · Physics 2022-01-19 Hongxuan Zhang , Yanmei Chen , Yong Shi , Min Bao , Xiaoling Yu

The morphological evolution of star-forming galaxies provides important clues to understand their physical properties, as well as the triggering and quenching mechanisms of star formation. We aim at connecting morphology and star-formation…

Astrophysics of Galaxies · Physics 2019-11-27 A. Lumbreras-Calle , J. Méndez-Abreu , C. Muñoz-Tuñón

Most massive stars are born in binary or higher-order multiple systems and exchange mass with a companion during their lives. In particular, the progenitors of a large fraction of compact object mergers, and Galactic neutron stars (NSs) and…

Solar and Stellar Astrophysics · Physics 2021-01-04 F. R. N. Schneider , Ph. Podsiadlowski , B. Müller

The observational cosmology with distant Type Ia supernovae (SNe) as standard candles claims that the Universe is in accelerated expansion, caused by a large fraction of dark energy. In this paper we investigate the SN Ia environment,…

Submillimeter galaxies (SMGs) provide valuable insights into galaxy formation and evolution and are likely influenced by their cosmic environment. However, their rarity makes environmental trends difficult to establish. We use the FLAMINGO…

Stripped-envelope stars can be observed as Wolf-Rayet (WR) stars, or as less luminous hydrogen-poor stars with low mass loss rates and transparent winds. Both types are potential progenitors of Type I core-collapse supernovae (SNe). We use…