2007A&A...468..627V

Query : 2007A&A...468..627V

2007A&A...468..627V - Astronomy and Astrophysics, volume 468627-635 (2007/6-3)

A computer program for fast non-LTE analysis of interstellar line spectra. With diagnostic plots to interpret observed line intensity ratios.

VAN DER TAK F.F.S., BLACK J.H., SCHOEIER F.L., JANSEN D.J. and VAN DISHOECK E.F.

Abstract (from CDS):

The large quantity and high quality of modern radio and infrared line observations require efficient modeling techniques to infer physical and chemical parameters such as temperature, density, and molecular abundances. We present a computer program to calculate the intensities of atomic and molecular lines produced in a uniform medium, based on statistical equilibrium calculations involving collisional and radiative processes and including radiation from background sources. Optical depth effects are treated with an escape probability method. The program is available on the World Wide Web at http://www.sron.rug.nl/~vdtak/radex/index.shtml . The program makes use of molecular data files maintained in the Leiden Atomic and Molecular Database (LAMDA), which will continue to be improved and expanded. The performance of the program is compared with more approximate and with more sophisticated methods. An Appendix provides diagnostic plots to estimate physical parameters from line intensity ratios of commonly observed molecules. This program should form an important tool in analyzing observations from current and future radio and infrared telescopes.

Abstract Copyright: ∼

Journal keyword(s): radiative transfer - methods: numerical - radio lines: ISM - infrared: ISM - submillimeter

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	IRAS 16293-2422	cor	16 32 22.56	-24 28 31.8						~	1357	1

Query : 2007A&A...468..627V

Basic data :

IRAS 16293-2422 -- Dense Core
Other object types:	`smm (2008ApJ,JCMTLSG,...)`, `IR (2013ApJS,HGBS,...)`, `MIR (SSTc2d,WISEA,...)`, `YO (2015MNRAS,[EES2009])`, `Y? (2015ApJS,[HL2013])`, `mm (2009ApJ,[YEE2006])`, `cor (2020A&A)`, `PoC ([FST86])`
ICRS coord. (ep=J2000) :	`16 32 22.56 -24 28 31.8 (Infrared) [ 300 300 90 ] C 2009ApJ...692..973E`
FK4 coord. (ep=B1950 eq=1950) :	`16 29 20.71 -24 22 11.7 [ 300 300 90 ]`
Gal coord. (ep=J2000) :	`353.93571 +15.84097 [ 300 300 90 ]`
Angular size (arcmin):	`0.35 0.13 136 (FIR) C` `2020A&A...638A..74L`

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`HGBS J163223.1-242836`	`NAME IRAS 16293`	`WISE J163222.62-242833.6`	`[JJK2008] SMM J163223-24284`
`IRAS 16293-2422`	`NAME rho Oph East`	`[EDJ2009] 1008`	`[NWA2006] SMM 20`
`JCMTLSG J163222.6-242833`	`SSTc2d J163222.6-242832`	`[EES2009] Oph-emb 2`	`[YEE2006] 37`
`JCMTSE J163222.8-242837`	`SSTc2d J163222.6-242831`	`[FST86] rho Oph E`
`JCMTSF J163222.8-242837`	`WISEA J163222.60-242833.6`	`[HL2013] 248.09427-24.47550`

References (1357 between 1850 and 2026) (Total 1357)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Data at NED - NASA/IPAC Extragalactic Database : IRAS 16293-2422

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IRAS 16293-2422 WISEA J163222.60-242833.6 WISE J163222.62-242833.6

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