2017AJ....154..249W

Query : 2017AJ....154..249W

2017AJ....154..249W - Astron. J., 154, 249-249 (2017/December-4)

Observations of the hydroxyl radical in C/2013 US10 (Catalina) at 18 cm wavelength.

WANG Z., CHEN X., GAO F., ZHANG S., ZHENG X.-W., IP W.-H., WANG N., LIU X., ZUO X.-T., GOU W. and CHANG S.-Q.

Abstract (from CDS):

The hydroxyl (OH) radical produced by photodissociation of water molecule is one of the most important indicators for cometary outgassing activity. The absorption lines of the OH radical at 1665 and 1667 MHz in the coma of comet C/2013 US10 Catalina were detected between 2015 December 3 and 5 by the Tian Ma Radio Telescope of Shanghai Astronomical Observatory. The source flux intensity was derived to be about -209 mJy km s–1 and -86 mJy km s–1 at 1665 MHz and 1667 MHz, respectively. The corresponding gas production rate was estimated to be (8.78 ± 1.47) x 1028 H2O s–1 and (5.94 ± 1.27) x 1028 H2O s–1, accordingly.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): comets: general - line: profiles - molecular processes - molecular processes

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 W 49n HII 19 10 13.2 +09 06 12           ~ 497 3

Query : 2017AJ....154..249W

Basic data :
W 49n -- HII Region
Other object types: otypes_help 		HII (), Rad (W)
ICRS coord. (ep=J2000) : 		19 10 13.2 +09 06 12 [ ] D ~
FK4 coord. (ep=B1950 eq=1950) : 		19 07 49.6 +09 01 15 [ ]
Gal coord. (ep=J2000) : 		043.1658 +00.0118 [ ]
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Identifiers (4) :
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NAME W 49A North NAME W 49A NW NAME W 49NW W 49n

References (497 between 1850 and 2026) (Total 497)
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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