- ID:
- ivo://CDS.VizieR/J/ApJ/673/999
- Title:
- Supernova and host galaxies metallicities
- Short Name:
- J/ApJ/673/999
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We investigate how the different types of supernovae are relatively affected by the metallicity of their host galaxy. We match the SAI supernova catalog to the SDSS DR4 catalog of star-forming galaxies with measured metallicities. These supernova host galaxies span a range of oxygen abundance from 12+log(O/H)=7.9 to 9.3 (~0.1-2.7 solar) and a range in absolute magnitude from M_B_=-15.2 to -22.2. To reduce the various observational biases, we select a subsample of well-characterized supernovae in the redshift range from 0.01 to 0.04, which leaves us with 58 SNe II, 19 SNe Ib/c, and 38 SNe Ia.
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Search Results
- ID:
- ivo://CDS.VizieR/J/A+A/629/A57
- Title:
- Supernova ASASSN-14jb light curves and spectra
- Short Name:
- J/A+A/629/A57
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present optical photometry and spectroscopy of the Type II supernova ASASSN-14jb, together with very large telescope (VLT) multi unit spectroscopic explorer (MUSE) integral field observations of its host galaxy and a nebular-phase spectrum. This supernova, in the nearby galaxy ESO 467-G051 (z=0.006), was discovered and followed-up by the all-sky automated survey for supernovae (ASAS-SN). We obtained well-sampled las cumbres network (LCOGTN) BVgri and Swift w2m1w1ubv optical, near-UV/optical light curves, and several optical spectra in the early photospheric phases. The transient ASASSN-14jb exploded ~2kpc above the star-forming disk of ESO 467-G051, an edge-on disk galaxy. The large projected distance from the disk of the supernova position and the non-detection of any HII region in a 1.4kpc radius in projection are in conflict with the standard environment of core-collapse supernova progenitors and suggests the possible scenario that the progenitor received a kick in a binary interaction. We present analysis of the optical light curves and spectra, from which we derived a distance of 25+/-2Mpc using state-of-the-art empirical methods for Type II SNe, physical properties of the SN explosion (^56^Ni mass, explosion energy, and ejected mass), and properties of the progenitor; namely the progenitor radius, mass, and metallicity. Our analysis yields a ^56^Ni mass of 0.0210+/-0.0025M_{sun}_, an explosion energy of ~0.25x10^51^ergs, and an ejected mass of ~6M_{sun}_. We also constrained the progenitor radius to be R*=580+/-28R_{sun}_ which seems to be consistent with the sub-Solar metallicity of 0.3+/-0.1Z_{sun}_ derived from the supernova FeII {lambda} 5018 line. The nebular spectrum constrains strongly the progenitor mass to be in the range 10-12M_{sun}_. From the Spitzer data archive we detect ASASSN-14jb ~330-days past explosion and we derived a total dust mass of 10^-4^M_{sun}_ from the 3.6um and 4.5um photometry. Using the FUV, NUV, BVgri,Ks, 3.6um, and 4.5u total magnitudes for the host galaxy, we fit stellar population synthesis models, which give an estimate of M*~1x10^9^M_{sun}_ , an age of 3.2Gyr, and a SFR~0.07M_{sun}_/yr. We also discuss the low oxygen abundance of the host galaxy derived from the MUSE data, having an average of 12+log(O/H)=8.27^+0.16^_-0.20_ using the O3N2 diagnostic with strong line methods. We compared it with the supernova spectra, which is also consistent with a sub-Solar metallicity progenitor. Following recent observations of extraplanar H II regions in nearby edge-on galaxies, we derived the metallicity offset from the disk, being positive, but consistent with zero at 2{sigma}, suggesting enrichment from disk outflows. We finally discuss the possible scenarios for the unusual environment for ASASSN-14jb and conclude that either the in-situ star formation or runaway scenario would imply a low-mass progenitor, agreeing with our estimate from the supernova nebular spectrum. Regardless of the true origin of ASASSN-14jb, we show that the detailed study of the environment roughly agree with the stronger constraints from the observation of the transient.
- ID:
- ivo://CDS.VizieR/J/A+A/544/A81
- Title:
- Supernovae and their hosts in the SDSS DR8
- Short Name:
- J/A+A/544/A81
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We report the creation of large and well-defined database that combines extensive new measurements and a literature search of 3876 supernovae (SNe) and their 3679 host galaxies located in the sky area covered by the Sloan Digital Sky Survey (SDSS) Data Release 8 (DR8). This database should be much larger than previous ones, and should contain a homogenous set of global parameters of SN hosts, including morphological classifications and measures of nuclear activity. Identification of the host galaxy sample is 91% complete (with 3536 SNe in 3340 hosts), of which the SDSS names of ~1100 anonymous hosts are listed for the first time. The morphological classification is available for 2104 host galaxies, including 73 (56) hosts in interacting (merging) systems. The total sample of host galaxies collects heliocentric redshifts for 3317 (~90%) galaxies. The g-band magnitudes, D_25_, b/a, and PA are available for 2030 hosts of the morphologically classified sample of galaxies. Nuclear activity measures are provided for 1189 host galaxies. We analyze and discuss many selection effects and biases that can significantly affect any future analysis of our sample. The creation of this large database will help to better understand how the different types of SNe are correlated with the properties of the nuclei and global physical parameters of the host galaxies, and minimize possible selection effects and errors that often arise when data are selected from different sources and catalogues.
- ID:
- ivo://CDS.VizieR/J/PASP/114/820
- Title:
- Supernovae host galaxies classification
- Short Name:
- J/PASP/114/820
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Classifications on the DDO system are given for the host galaxies of 177 supernovae (SNe) that have been discovered since 1997 during the course of the Lick Observatory Supernova Search with the Katzman Automatic Imaging Telescope. Whereas SNe Ia occur in all galaxy types, it is found, at a high level of statistical confidence, that SNe Ib, Ic, and II are strongly concentrated in late-type galaxies. However, attention is drawn to a possible exception provided by SN 2001I. This SN IIn occurred in the E2 galaxy UGC 2836, which was not expected to harbor a massive young supernova progenitor.
- ID:
- ivo://CDS.VizieR/J/MNRAS/382/1169
- Title:
- Supernovae in the Subaru Deep Field
- Short Name:
- J/MNRAS/382/1169
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Large samples of high-redshift supernovae (SNe) are potentially powerful probes of cosmic star formation, metal enrichment and SN physics. We present initial results from a new deep SN survey, based on re-imaging in the R, i', z' bands, of the 0.25deg^2^ Subaru Deep Field (SDF), with the 8.2-m Subaru telescope and Suprime-Cam. In a single new epoch consisting of two nights of observations, we have discovered 33 candidate SNe, down to a z'-band magnitude of 26.3 (AB). We have measured the photometric redshifts of the SN host galaxies, obtained Keck spectroscopic redshifts for 17 of the host galaxies and classified the SNe using the Bayesian photometric algorithm of Poznanski et al. (2007AJ....134.1285P) that relies on template matching.
- ID:
- ivo://CDS.VizieR/J/MNRAS/417/916
- Title:
- Supernovae in the Subaru Deep Field
- Short Name:
- J/MNRAS/417/916
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The Type Ia supernova (SN Ia) rate, when compared to the cosmic star formation history (SFH), can be used to derive the delay-time distribution (DTD; the hypothetical SN Ia rate versus time following a brief burst of star formation) of SNe Ia, which can distinguish among progenitor models. We present the results of a supernova (SN) survey in the Subaru Deep Field (SDF). Over a period of 3 years, we have observed the SDF on four independent epochs with Suprime-Cam on the Subaru 8.2-m telescope, with two nights of exposure per epoch, in the R, i' and z' bands. We have discovered 150 SNe out to redshift z~=2. Using 11 photometric bands from the observer-frame far-ultraviolet to the near-infrared, we derive photometric redshifts for the SN host galaxies (for 24 we also have spectroscopic redshifts). This information is combined with the SN photometry to determine the type and redshift distribution of the SN sample. Our final sample includes 28 SNe Ia in the range 1.0<z<1.5 and 10 in the range 1.5<z<2.0.
- ID:
- ivo://CDS.VizieR/J/A+A/297/49
- Title:
- Supernovae spatial distribution
- Short Name:
- J/A+A/297/49
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- In order to investigate the location of supernovae (SNe) in paired and interacting galaxies, the 54 supernovae discovered up to May 1993 in 14 Isolated Pairs of Galaxies and in 32 Interacting Systems were taken as a sample and studied.
- ID:
- ivo://CDS.VizieR/J/A+A/657/A64
- Title:
- Supernovae ZTF light curves
- Short Name:
- J/A+A/657/A64
- Date:
- 16 Mar 2022 13:01:07
- Publisher:
- CDS
- Description:
- Stripped-envelope supernovae (SE SNe) of Type Ib and Type Ic are thought to result from explosions of massive stars having lost their outer envelopes. The favoured explosion mechanism is by core-collapse, with the shock later revived by neutrino heating. However, there is an upper limit to the amount of radioactive ^56^Ni that such models can accomplish. Recent literature point to a tension between the maximum luminosity from such simulations and observations. We use a well characterized sample of SE SNe from the Zwicky Transient Facility (ZTF) Bright Transient Survey (BTS). We scrutinize the observational caveats regarding estimating the maximum luminosity (and thus the amount of ejected radioactive nickel) for the members of this sample. We employ the strict selection criteria for the BTS to collect a sample of spectroscopically classified normal Type Ibc SNe for which we use the ZTF light curves to determine the maximum luminosity. We cull the sample further based on data quality, light-curve shape, distance and colors, and examine uncertainties that may affect the numbers. The methodology of the sample construction from this BTS sample can be used for many other future investigations. We analyze observational data, consisting of optical light curves and spectra, for the selected sub-samples. In total we use 129 Type Ib or Type Ic BTS SNe with an initial rough luminosity distribution peaked at M_r_=-17.61+/-0.72, and where 36% are apparently brighter than the theoretically predicted maximum brightness of M_r_=-17.8. When we further cull this sample to ensure that the SNe are normal Type Ibc with good LC data within the Hubble flow, the sample of 94 objects has M_r_=-17.64+/-0.54. A main uncertainty in absolute magnitude determinations for SNe is the host galaxy extinction correction, but the reddened objects only get more luminous after corrections. If we simply exclude objects with red, unusual or uncertain colors, we are left with 14 objects at M_r_=-17.90+/-0.73, whereof a handful are most certainly brighter than the suggested theoretical limit. The main result of this study is thus that normal SNe Ibc do indeed reach luminosities above 10^42.6^erg/s, apparently in conflict with existing explosion models.
- ID:
- ivo://CDS.VizieR/J/MNRAS/410/1262
- Title:
- Supernova Legacy Survey. Type Ia supernovae
- Short Name:
- J/MNRAS/410/1262
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Optical long-slit spectroscopy at the Gemini-North telescope using the Gemini Multi-Object Spectrograph (GMOS) was used to classify targets from the Supernova Legacy Survey (SNLS) from 2005 July and 2006 May-2008 May. During this time, 95 objects were observed. Where possible, the objects' redshifts (z) were measured from narrow emission or absorption features in the host galaxy spectrum, otherwise they were measured from the broader supernova features. We present spectra of 68 confirmed or probable SNe Ia from SNLS with redshifts in the range 0.17<=z<=1.02.
- ID:
- ivo://CDS.VizieR/J/A+AS/138/253
- Title:
- Supernova light echoes
- Short Name:
- J/A+AS/138/253
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Supernova (SN) light echoes could be a powerful tool for determining distances to galaxies geometrically, Sparks (1994ApJ...433...19S). In this paper we present CCD photometry of the environments of 64 historical supernovae, the first results of a program designed to search for light echoes from these SNe. We commonly find patches of optical emission at, or close to, the sites of the supernovae. The color distribution of these patches is broad, and generally consistent with stellar population colors, possibly with some reddening. However there are in addition patches with both unusually red and unusually blue colors. We expect light echoes to be blue, and while none of the objects are quite as blue in V-R as the known light echo of SN 1991T, there are features that are unusually blue and we identify these as candidate light echoes for follow-on observations.
