2021MNRAS.505.1987D

Query : 2021MNRAS.505.1987D

2021MNRAS.505.1987D - Mon. Not. R. Astron. Soc., 505, 1987-1991 (2021/August-1)

Collisional excitation of deuterated hydroxyl (OD) by molecular hydrogen.

DAGDIGIAN P.J.

Abstract (from CDS):

Cross sections and rate coefficients for transitions between hyperfine levels associated with the 14 lowest rotational/fine-structure levels of OD induced by collisions with ortho-H₂ and para-H₂ are presented. These collisional parameters have been computed in time-independent close-coupling quantum-scattering calculations with a potential energy surface (PES) describing the OD-H₂ interaction, which was obtained by transformation of the OH-H₂ PES. Rate coefficients have been computed for temperatures from 5 to 200 K. Cross sections for OD transitions between rotational/fine-structure levels are found to be significantly larger than the corresponding transitions in OH, mainly because of the reduced energy gaps in OD. The hyperfine-resolved rate coefficients were employed in simple radiative transfer calculations for OD and compared with analogous calculations for OH.

Journal keyword(s): molecular data - molecular processes - ISM : abundances

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 : 2021MNRAS.505.1987D

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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