# Detection of Diffuse Interstellar Bands in the z = 0.5 Damped Lyα System toward AO 0235+164*

@article{York2006DetectionOD,
title={Detection of Diffuse Interstellar Bands in the z = 0.5 Damped Ly$\alpha$ System toward AO 0235+164*},
author={Brian Andrew York and Sara L. Ellison and Brandon L. Lawton and Christopher W. Churchill and Theodore P. Snow and Rachel A. Johnson and Sean G. Ryan},
journal={The Astrophysical Journal},
year={2006},
volume={647}
}
• Published 18 May 2006
• Physics
• The Astrophysical Journal
We report the first detection of the 5705 and 5780 A diffuse interstellar bands (DIBs) in a moderate-redshift damped Lyα (DLA) system. We measure a rest-frame equivalent width of 63.2 ± 8.7 mA for the 5705 A feature and 216 ± 9 mA for the 5780 A feature in the zabs = 0.524 DLA toward AO 0235+164 and derive limits for the equivalent widths of the bands at 5797, 6284, and 6613 A. The equivalent width of the 5780 A band is lower than would be expected based on the Galactic correlation of DIB…

## Figures and Tables from this paper

Diffuse interstellar bands in z < 0.6 Ca ii absorbers★
The diffuse interstellar bands (DIBs) probably arise from complex organic molecules whose strength in local galaxies correlates with neutral hydrogen column density, N(H i), and dust reddening,
A Survey of Diffuse Interstellar Bands in the Andromeda Galaxy: Optical Spectroscopy of M31 OB Stars
• Physics
• 2011
We present the largest sample to date of intermediate-resolution blue-to-red optical spectra of B-type supergiants in M31 and undertake the first survey of diffuse interstellar bands (DIBs) in this
Diffuse Interstellar Bands versus Known Atomic and Molecular Species in the Interstellar Medium of M82 toward SN 2014J
• Physics
• 2014
We discuss the absorption due to various constituents of the interstellar medium (ISM) of M82 seen in moderately high-resolution, high signal-to-noise ratio optical spectra of SN 2014J. Complex
Evidence of Magellanic-like moderate redshift H i-rich galaxies
• Physics
Proceedings of the International Astronomical Union
• 2008
Abstract We present equivalent width measurements and limits of six diffuse interstellar bands (DIBs, λ 4428, λ 5705, λ 5780, λ 5797, λ 6284, and λ 6613) in seven damped Lyα absorbers (DLAs) over the
IDENTIFICATION OF NEW NEAR-INFRARED DIFFUSE INTERSTELLAR BANDS IN THE ORION NEBULA*
• Physics
• 2009
Large organic molecules and carbon clusters are basic building blocks of life, but their existence in the universe has not been confirmed beyond doubt. A number of unidentified absorption features
On the source of the dust extinction in type Ia supernovae and the discovery of anomalously strong Na i absorption
• Physics
• 2013
High-dispersion observations of the Na I D λλ5890, 5896 and K I λλ7665, 7699 interstellar lines, and the diffuse interstellar band at 5780 A in the spectra of 32 Type Ia supernovae are used as an
Probing the missing link between the diffuse interstellar bands and the total-to-selective extinction ratio $R_V\,\!-\!$ I. Extinction versus reddening
• Physics
Monthly Notices of the Royal Astronomical Society
• 2019
The carriers of the still (mostly) unidentified diffuse interstellar bands (DIBs) have been a long-standing mystery ever since their first discovery exactly 100 yr ago. In recent years, the
Constraining the size of the carrier of the λ5797.1 diffuse interstellar band
• Physics
• 2015
The diffuse interstellar band (DIB) at 5797.1 Å is simulated based on three premises: (1) The carrier of the DIB is polar as concluded by T. Oka et al. from the anomalous spectrum toward Herschel 36
Dense molecular clouds in the SN 2008fp host galaxy
• Physics
• 2014
(abridged) We use observations of interstellar absorption features, such as atomic and molecular lines as well as diffuse interstellar bands (DIBs), towards SN2008fp to study the physical properties
Diffuse interstellar absorption bands
• Physics
• 2009
The diffuse interstellar bands (DIBs) are a large number of absorption bands that are superposed on the interstellar extinction curve and are of interstellar origin. Since the discovery of the first

## References

SHOWING 1-10 OF 21 REFERENCES
Diffuse interstellar bands of unprecedented strength in the line of sight towards high-mass X-ray binary 4U 1907+09
• Physics
• 2005
High-resolution VLT/UVES spectra of the strongly reddened O supergiant companion to the X-ray pulsar 4U 1907+09 provide a unique opportunity to study the nature of the diffuse interstellar bands
Diffuse Interstellar Bands in NGC 1448
• Physics
• 2004
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
The Detection of the Diffuse Interstellar Bands in Dusty Starburst Galaxies
We report the detection of the diffuse interstellar bands (DIBs) in the optical spectra of seven far-IR-selected starburst galaxies. The λλ6283.9 and 5780.5 features are detected with equivalent
Selecting damped Lyman α systems through Ca ii absorption – I. Dust depletions and reddening at z∼ 1
• Physics
• 2006
We use the average E(B − V ) and Zn II column densities of a sample of z ∼ 1C aII λλ 3935, 3970 absorption-line systems selected from the fourth data release of the Sloan Digital Sky Survey (SDSS) to
DUST AND DIFFUSE INTERSTELLAR BANDS IN THE z~a = 0.524 ABSORPTION SYSTEM TOWARD AO 0235+164
• Physics
• 2004
The authors present new HST STIS NUV-MAMA and STIS CCD observations of the BL Lac object AO 0235+164 and the intervening damped Ly {alpha} (DLA) line at z{sub {alpha}} = 0.524. The line profile gives
Some Diffuse Interstellar Bands Related to Interstellar C2 Molecules
• Physics
• 2003
We have investigated the correlations between the equivalent widths of 21 selected diffuse interstellar bands (DIBs) and the corresponding interstellar column densities N(C2), N(CN), and N(CH),
The Diffuse Interstellar Bands
The diffuse interstellar bands are absorption features observed in the spectra of stars seen through significant column densities of interstellar material. Of the 127 confirmed DIBs in the optical
VLT UVES Observations of Interstellar Molecules and Diffuse Bands in the Magellanic Clouds
• Physics
• 2006
We discuss the abundances of interstellar CH, CH+, and CN in the Magellanic Clouds, derived from spectra of seven SMC and 13 LMC stars obtained (mostly) with the VLT UVES. CH and/or CH+ have now been
A deep search for 21-cm absorption in high redshift damped Lyman-alpha systems
We present deep GMRT 21-cm absorption spectra of 10 damped Lyman- systems (DLAs), of which 8 are at redshifts z> 1:3. HI absorption was detected in only one DLA, the z= 0:5318 absorber toward PKS
Average extinction curves and relative abundances for quasi-stellar object absorption-line systems at 1 ≤zabs < 2
• Physics
• 2006
We have studied a sample of 809 Mg II absorption systems with 1.0 ≤ z abs ≤ 1.86 in the spectra of Sloan Digital Sky Survey quasi-stellar objects (QSOs), with the aim of understanding the nature and