2018ApJ...863....3B

Query : 2018ApJ...863....3B

2018ApJ...863....3B - Astrophys. J., 863, 3-3 (2018/August-2)

Accurate laboratory measurement of the complete fine structure of the N = 1 - 0 transition of ¹⁵NH.

BIZZOCCHI L., MELOSSO M., DORE L., DEGLI ESPOSTI C., TAMASSIA F., PRUDENZANO D., LATTANZI V., LAAS J., SPEZZANO S., GIULIANO B.M., ENDRES C.P. and CASELLI P.

Abstract (from CDS):

The imidogen radical is an important molecule of the chemistry of nitrogen in the interstellar medium and is thought to be a key intermediate in the gas-phase synthesis of ammonia. The full fine structure of the N=1←0 rotational transition of ¹⁵NH has been observed for the first time by pure rotational spectroscopy around 1 THz. The radical has been produced by means of low-pressure glow discharge of H₂ and ¹⁵N-enriched nitrogen. A number of hyperfine components have been observed and accurately measured. The analysis of the data provided very precise spectroscopic constants, which include rotational, centrifugal distortion, electron spin-spin interaction, and electron spin-rotation terms in addition to the hyperfine parameters relative to the isotropic and anisotropic electron spin-nuclear spin interactions for ¹⁵N and H and to the nuclear spin-rotation for ¹⁵N. The efficiency of the discharge system allowed us to observe several components of the same rotational transition in the excited vibrational state v = 1, for which a set of spectroscopic constants has also been determined.

Journal keyword(s): ISM: molecules - methods: laboratory: molecular - techniques: spectroscopic

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 : 2018ApJ...863....3B

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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