Detection of extragalactic argonium, ArH + , toward PKS 1830-211

@article{Muller2015DetectionOE,
  title={Detection of extragalactic argonium, ArH + , toward PKS 1830-211},
  author={Holger S. P. Muller and S{\'e}bastien Muller and Peter Schilke and Edwin Anthony Bergin and John H. Black and Maryvonne Gerin and Dariusz C. Lis and David A. Neufeld and Sumeyye Suri},
  journal={Astronomy and Astrophysics},
  year={2015},
  volume={582},
  pages={4}
}
Context. Argonium has recently been detected as a ubiquitous molecule in our Galaxy. Model calculations indicate that its abundance peaks at molecular fractions in the range of 10^(-4) to 10^(-3) and that the observed column densities require high values of the cosmic ray ionization rate. Therefore, this molecular cation may serve as an excellent tracer of the very diffuse interstellar medium (ISM), as well as an indicator of the cosmic ray ionization rate. Aims. We attempted to detect ArH+ in… 

Figures and Tables from this paper

Extending the view of ArH+ chemistry in diffuse clouds

Context. One of the surprises of the Herschel mission was the detection of ArH+ towards the Crab Nebula in emission and in absorption towards strong Galactic background sources. Although these

THE CHEMISTRY OF INTERSTELLAR ARGONIUM AND OTHER PROBES OF THE MOLECULAR FRACTION IN DIFFUSE CLOUDS

We present a general parameter study in which the abundance of interstellar argonium (ArH+) is predicted using a model for the physics and chemistry of diffuse interstellar gas clouds. Results have

Cold clouds as cosmic-ray detectors

Low energy cosmic-rays (CRs) are responsible for gas heating and ionization of interstellar clouds, which in turn introduces coupling to Galactic magnetic fields. So far the CR ionization rate (CRIR)

OH+ and H2O+ absorption toward PKS1830-211

We report the detection of OH+ and H2O+ in the z=0.89 absorber toward the lensed quasar PKS1830-211. The abundance ratio of OH+ and H2O+ is used to quantify the molecular hydrogen fraction (fH2) and

Detection of deuterated molecules, but not of lithium hydride, in the z = 0.89 absorber toward PKS 1830−211

Deuterium and lithium are light elements of high cosmological and astrophysical importance. In this work we report the first detection of deuterated molecules and a search for lithium hydride, 7LiH,

Submillimeter polarization and variability of quasar PKS 1830–211

Polarization from active galactic nuclei is interpreted as a signpost of the role of magnetic fields in the launch and collimation of their relativistic radio jets. Here, we report the detection of a

Erratum: Modelling the ArH+ emission from the Crab Nebula

We have performed combined photoionization and photodissociation region (PDR) modelling of a Crab Nebula filament subjected to the synchrotron radiation from the central pulsar wind nebula, and to a

2021 Census of Interstellar, Circumstellar, Extragalactic, Protoplanetary Disk, and Exoplanetary Molecules

  • B. McGuire
  • Physics, Geology
    The Astrophysical Journal Supplement Series
  • 2022
To date, 241 individual molecular species, composed of 19 different elements, have been detected in the interstellar and circumstellar medium by astronomical observations. These molecules range in

Exploring the Possibility of Identifying Hydride and Hydroxyl Cations of Noble Gas Species in the Crab Nebula Filament

The first identification of the argonium ion ( ) toward the Crab Nebula supernova remnant was proclaimed by Herschel in the submillimeter and far-infrared domains. Very recently, the discovery of the

PKS 1830–211: OH and H I at z = 0.89 and the first MeerKAT UHF spectrum

The Large Survey Project (LSP) “MeerKAT Absorption Line Survey” (MALS) is a blind H I 21 cm and OH 18 cm absorption line survey in the L- and UHF-bands, primarily designed to better determine the

References

SHOWING 1-10 OF 39 REFERENCES

Ubiquitous Argonium, ArH⁺, in the Diffuse Interstellar Medium

ArH+ is isoelectronic with HCl. The J = 1-0 and 2-1 transitions of 36ArH+ near 617.5 and 1234.6 GHz, respectively, have been identified very recently as emission lines in spectra obtained with

An ALMA Early Science survey of molecular absorption lines toward PKS 1830−211 - Analysis of the absorption profiles

We present the first results of an ALMA spectral survey of strong absorption lines for common interstellar species in the z = 0.89 molecular absorber toward the lensed blazar PKS 1830-211. The

HERSCHEL/HIFI DISCOVERY OF HCL+ IN THE INTERSTELLAR MEDIUM

The radical ion HCl+, a key intermediate in the chlorine chemistry of the interstellar gas, has been identified for the first time in the interstellar medium with the Herschel Space Observatory's

Probing isotopic ratios at z = 0.89 : molecular line absorption in front of the quasar PKS 1830-211

With the Plateau de Bure interferometer, we have measured the C, N, O and S isotopic abundance ratios in the arm of a spiral galaxy with a redshift of 0.89. The galaxy is seen face-on according to

Detection of a Noble Gas Molecular Ion, 36ArH+, in the Crab Nebula

Spectroscopic observations of the remains of stellar explosions confirm that argon-36 and phosphorus are produced in such energetic events, and detect the first evidence of a noble gas-containing molecular ion in space—36ArH+.

HERSCHEL SURVEY OF GALACTIC OH+, H2O+, AND H3O+: PROBING THE MOLECULAR HYDROGEN FRACTION AND COSMIC-RAY IONIZATION RATE

In diffuse interstellar clouds the chemistry that leads to the formation of the oxygen-bearing ions OH+, H2O+, and H3O+ begins with the ionization of atomic hydrogen by cosmic rays, and continues

Black hole accretion and star formation as drivers of gas excitation and chemistry in Markarian 231

We present a full high resolution SPIRE FTS spectrum of the nearby ultraluminous infrared galaxy Mrk 231. In total 25 lines are detected, including CO J = 5-4 through J = 13-12, 7 rotational lines of

Herschel/HIFI discovery of interstellar chloronium (H2Cl+)

We report the first detection of chloronium, H2Cl+, in the interstellar medium, using the HIFI instrument aboard the Herschel Space Observatory. The 212-101 lines of ortho-H_235Cl+ and ortho-H_237Cl+

Discovery of interstellar mercapto radicals (SH) with the GREAT instrument on SOFIA

We report the discovery of interstellar mercapto radicals (SH) along the sight-line to the submillimeter continuum source W49N. We have used the GREAT instrument on SOFIA to observe the 1383 GHz 2

The redshift of the gravitational lens of PKS1830–211 determined from molecular absorption lines

GRAVITATIONAL lensing can be used to derive fundamental cosmo-logical parameters, provided that the redshift of the lens and the structure of its potential well are known1. The radio source