2008A&A...492..725M


Query : 2008A&A...492..725M

2008A&A...492..725M - Astronomy and Astrophysics, volume 492, 725-730 (2008/12-4)

Submillimeter water and ammonia absorption by the peculiar z≃0.89 interstellar medium in the gravitational lens of the PKS 1830-211 system.

MENTEN K.M., GUESTEN R., LEURINI S., THORWIRTH S., HENKEL C., KLEIN B., CARILLI C.L. and REID M.J.

Abstract (from CDS):

Using the Atacama Pathfinder Experiment (APEX) telescope, we have detected the rotational ground-state transitions of ortho-ammonia and ortho-water toward the redshift ≃0.89 absorbing galaxy in the PKS 1830-211 gravitational lens system. We discuss our observations in the context of recent space-borne data obtained for these lines with the SWAS and Odin satellites toward Galactic sources. We find commonalities, but also significant differences between the interstellar media in a galaxy at intermediate redshift and in the Milky Way. Future high-quality observations of the ground-state ammonia transition in PKS 1830-211, together with inversion line data, will lead to strong constraints on the variation in the proton to electron mass ratio over the past 7.2Gyr.

Abstract Copyright:

Journal keyword(s): cosmology: observations - gravitational lensing - astrochemistry - ISM: abundances - ISM: molecules

Simbad objects: 13

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Number of rows : 13
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 QSO B0132-097 QSO 01 34 35.6657627616 -09 31 02.903742300   24.52 22.70 20.80   ~ 105 1
2 QSO B0218+357 QSO 02 21 05.4920852208 +35 56 13.848581904   20.0 20.0 19.60   ~ 534 3
3 TMC-1 MoC 04 41 45.9 +25 41 27           ~ 1568 0
4 M 51 GiP 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4166 4
5 LDN 183 MoC 15 54 12.2 -02 49 42           ~ 729 1
6 NAME rho Oph A Cloud MoC 16 26 26.4 -24 22 33           ~ 281 1
7 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13455 0
8 NAME Sgr B2 (North) Rad 17 47 20.2 -28 22 21           ~ 625 1
9 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2150 1
10 GAL 010.47+00.03 HII 18 08 38.4 -19 51 52           ~ 132 0
11 SNR G012.8-00.2 SFR 18 14 14.0 -17 55 50           ~ 242 0
12 QSO B1830-211 Bla 18 33 39.9399138048 -21 03 39.368838780     18.70 21   ~ 628 1
13 LDN 663 DNe 19 36 55 +07 34.4           ~ 612 0

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2023.02.08-02:23:57

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