Diffuse Interstellar Bands in NGC 1448

Abstract

We present spectroscopic VLT/UVES observations of two emerging supernovae, the Type Ia SN 2001el and the Type II SN 2003hn, in the spiral galaxy NGC 1448. Our high resolution and high signal-to-noise spectra display atomic lines of Ca II, Na I, Ti II and K I in the host galaxy. In the line of sight towards SN 2001el, we also detect over a dozen diffuse interstellar bands (DIBs) within NGC 1448. These DIBs have strengths comparable to low reddening galactic lines of sight, albeit with some variations. In particular, a good match is found with the line of sight towards the sigma type diffuse cloud (HD 144217). The DIBs towards SN 2003hn are significantly weaker, and this line of sight has also lower sodium column density. The DIB central velocities show that the DIBs towards SN 2001el are closely related to the strongest interstellar Ca II and Na I components, indicating that the DIBs are preferentially produced in the same cloud. The ratio of the 5797 and 5780 DIB strengths (r~0.14) suggests a rather high UV field in the DIB environment towards SN 2001el. We also note that the extinction estimates obtained from the sodium lines using multiple line fitting agree with reddening estimates based on the colors of the Type Ia SN 2001el.

Accepted for A&A - bitmapped figure 1

References in corpus (7)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• The Reddening-Free Decline Rate Versus Luminosity Relationship for Type Ia Supernovae
• K-corrections and Extinction Corrections for Type Ia Supernovae
• Optical and Infrared Photometry of the Nearby Type Ia Supernova 2001el
• Optical and Infrared photometry of the type IIn SN 1998S:Days 11-146
• The nature of the progenitor of the Type II-P supernova 1999em
• The Detection of the Diffuse Interstellar Bands in Dusty Starburst Galaxies

Cited by in corpus (56)

• Characterizing the V-band light-curves of hydrogen-rich type II supernovae
• On the Source of the Dust Extinction in Type Ia Supernovae and the Discovery of Anomalously Strong Na I Absorption
• The Diffuse Interstellar Bands: A Major Problem in Astronomical Spectroscopy
• The Interstellar dust properties of nearby galaxies
• Circumstellar Material in Type Ia Supernovae via Sodium Absorption Features
• Supernova 2006aj and the associated X-Ray Flash 060218
• Early and late time VLT spectroscopy of SN 2001el - progenitor constraints for a type Ia supernova
• VLT/UVES Observations of Interstellar Molecules and Diffuse Bands in the Magellanic Clouds
• On the nature of nearby GRB/SN host galaxies
• The hydrogen-poor superluminous supernova iPTF13ajg and its host galaxy in absorption and emission
• Diversity in extinction laws of Type Ia supernovae measured between $0.2$ and $2\mu \mathrm{m}$
• Diffuse interstellar bands in Upper Scorpius: Probing variations in the DIB spectrum due to changing environmental conditions
• Photometric and Spectroscopic Properties of Type Ia Supernova 2018oh with Early Excess Emission from the $Kepler$ 2 Observations
• Hydrogen and helium in the spectra of Type Ia supernovae
• Diffuse interstellar bands in RAVE Survey spectra
• The Transitional Stripped-Envelope SN 2008ax: Spectral Evolution and Evidence for Large Asphericity
• The ESO Diffuse Interstellar Bands Large Exploration Survey: EDIBLES I. Project description, survey sample and quality assessment
• A survey of diffuse interstellar bands in the Andromeda galaxy: optical spectroscopy of M31 OB stars
• A general model for the identification of specific PAHs in the far-IR
• The long-lived Type IIn SN 2015da: Infrared echoes and strong interaction within an extended massive shell
• Interstellar atoms, molecules and diffuse bands toward SN2006X in M100
• Detection of diffuse interstellar bands in M31
• Diffuse Interstellar Bands vs. Known Atomic and Molecular Species in the Interstellar Medium of M82 toward SN 2014J
• Parsec-scale structures and diffuse bands in a translucent interstellar medium at z 0.079
• Time-Varying Potassium in High-Resolution Spectra of the Type Ia Supernova 2014J
• Late-time emission of type Ia supernovae: optical and near-infrared observations of SN 2001el
• Upper limit for circumstellar gas around the Type Ia SN 2000cx
• Detections of Diffuse Interstellar Bands in the SDSS Low-resolution Spectra
• A New Compton-thick AGN in our Cosmic Backyard: Unveiling the Buried Nucleus in NGC 1448 with NuSTAR
• Detection of Diffuse Interstellar Bands in the z=0.5 Damped Lyman alpha system towards AO 0235+164
• Near infrared diffuse interstellar bands toward the Cygnus OB2 association
• The nature of supernovae 2010O and 2010P in Arp 299 - I. Near-infrared and optical evolution
• Diffuse Interstellar Bands in z < 0.6 CaII Absorbers
• Multicolor Infrared Observations of SN 2006aj, the Supernova Associated with XRF 060218 - Paper I
• Linear/circular spectropolarimetry of diffuse interstellar bands
• Near-infrared diffuse interstellar bands in APOGEE telluric standard star spectra: weak bands and comparisons with optical counterparts
• Supernovae and Cosmology
• Limits on Reddening and Gas-to-Dust Ratios for Seven Intermediate Redshift Damped Ly-alpha Absorbers from Diffuse Interstellar Bands
• A catalog of 1.5273 micron diffuse interstellar bands based on APOGEE hot telluric calibrators
• Type II Supernovae as Distance Indicators at Near-IR Wavelengths
• Time-Varying Sodium Absorption in the Type Ia Supernova 2013gh
• Dense molecular clouds in the SN2008fp host galaxy
• Time series of high resolution spectra of SN 2014J observed with the TIGRE telescope
• Diffuse interstellar bands λ5780 and λ5797 in the Antennae Galaxy as seen by MUSE
• Identification of New Near-Infrared DIBs in the Orion Nebula
• The EDIBLES survey V: Line profile variations in the $\lambda \lambda$5797, 6379, and 6614 diffuse interstellar bands as a tool to constrain carrier sizes
• No evidence of circumstellar gas surrounding Type Ia Supernova SN 2017cbv
• Probing gas and dust in the tidal tail of NGC 5221 with the type Ia supernova iPTF16abc
• The optical and near-infrared spectrum of the Crab pulsar with X-shooter
• Probing the Missing Link between the Diffuse Interstellar Bands and the Total-to-Selective Extinction Ratio $R_V$ $-$ I. Extinction versus Reddening
• The Interstellar Line of Sight to the Interacting Galaxy NGC 5195
• Narrow absorption lines from intervening material in supernovae I. Measurements and temporal evolution
• Narrow absorption lines from intervening material in supernovae. II. Galaxy properties
• Measuring Diffuse Interstellar Bands with cool stars. An improved line list to model the background stellar spectra
• Mapping the diffuse interstellar bands $\lambda$5780 and $\lambda$6284 in the luminous infrared galaxy merger NGC 6240
• The promise of recent and future observatories and instruments