2008A&A...492L...5C


Query : 2008A&A...492L...5C

2008A&A...492L...5C - Astronomy and Astrophysics, volume 492, L5-8 (2008/12-2)

Diffuse interstellar bands in M33.

CORDINER M.A., SMITH K.T., COX N.L.J., EVANS C.J., HUNTER I., PRZYBILLA N., BRESOLIN F. and SARRE P.J.

Abstract (from CDS):

We investigate the diffuse interstellar band (DIB) spectrum in the interstellar medium of the Local Group spiral galaxy M33. Optical spectra of the M33 supergiant star J013346.96+303642.8 were taken at a resolving power of ∼3000 using the DEIMOS spectrograph of the W. M. Keck Observatory. We report the first detection and measurement of DIBs in M33. The λλ5705, 5780, 5797, 6203, 6269, 6283, and 6613 DIBs are detected at velocities matching the M33 NaI absorption lines. The λ4428 DIB is tentatively detected. The stellar spectrum is classified as A3 Ia and the line-of-sight interstellar reddening is derived. Diffuse interstellar band (DIB) equivalent widths and radial velocities are presented. The overall spectrum of DIBs observed in M33 is found to be similar to that observed in the Milky Way. However, along this line-of-sight, the M33 DIB equivalent widths per unit reddening are large compared with those typically observed in the Galaxy.

Abstract Copyright:

Journal keyword(s): astrochemistry - galaxies: Local Group - galaxies: ISM - ISM: lines and bands - ISM: atoms - ISM: dust, extinction

Simbad objects: 11

goto Full paper

goto View the references in ADS

Number of rows : 11
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11792 1
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 10194 1
3 LGGS J013346.96+303642.8 * 01 33 46.0 +30 36 42 18.193 18.297 17.965 17.750 17.394 A3Ia 1 0
4 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5488 1
5 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 6277 1
6 NGC 1448 GiG 03 44 31.915 -44 38 41.38   11.46   10.24 10.9 ~ 241 0
7 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15990 1
8 NGC 2770 GiG 09 09 33.622 +33 07 24.29   12.1       ~ 244 0
9 * bet01 Sco SB* 16 05 26.2319826 -19 48 19.630018 1.68 2.55 2.62 2.60 2.69 B1V 544 0
10 HD 164402 SB* 18 01 54.3809958600 -22 46 49.059228432 4.88 5.77 5.77 5.74 5.69 B0Iab/b 168 1
11 NAME Local Group GrG ~ ~           ~ 7638 0

To bookmark this query, right click on this link: simbad:objects in 2008A&A...492L...5C and select 'bookmark this link' or equivalent in the popup menu


2022.05.21-15:01:19

© Université de Strasbourg/CNRS

    • Contact