1995A&A...300..422I

Query : 1995A&A...300..422I

1995A&A...300..422I - Astronomy and Astrophysics, volume 300422-428 (1995/8-2)

COMPTEL search for 22Na line emission from recent novae.

IYUDIN A.F., BENNETT K., BLOEMEN H., DIEHL R., HERMSEN W., LICHTI G.G., MORRIS D., RYAN J., SCHOENFELDER V., STEINLE H., STRONG A., VARENDORFF M. and WINKLER C.

Abstract (from CDS):

The COMPTEL telescope on board the Compton Gamma-Ray Observatory (CGRO) is capable of imaging gamma-ray line sources in the MeV region at a sensitivity of about 10–5photons/(cm2s). During the period August 1991 to August 1993 of the observation program of CGRO, several recent Galactic novae, some of which were later claimed to be neon-type novae, were in the COMPTEL field of view on a number of occasions. We searched for the 22Na line at 1.275MeV from the neon-type novae. No positive detection can be reported. Combining the upper limits to the fluxes from these novae we are able to derive an average 2 σ upper limit for any neon-type novae in the Galactic disk of the order of 3x10–5/(cm2s), which translates into an upper limit of the ejected 22Na mass of 3.7x10–8M☉ . This COMPTEL limit severely constrains modern theories of novae.

Abstract Copyright: ∼

Journal keyword(s): gamma-rays: observations - nucleosynthesis - novae

Simbad objects: 14

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Number of rows : 14
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 V* V351 Pup No* 08 11 38.3931386664 -35 07 30.288675216           ~ 128 0
3 V* V868 Cen No* 13 50 10.6971820608 -63 08 51.911816424           ~ 51 0
4 V* V992 Sco No* 17 07 17.4574929720 -43 15 21.906348840           ~ 70 0
5 V* V4157 Sgr No* 18 09 34.9 -25 51 58           ~ 34 0
6 V* V4160 Sgr No* 18 14 13.83 -32 12 28.5           ~ 69 0
7 V* V4169 Sgr No* 18 23 26.9491445472 -28 21 59.685983892           ~ 48 0
8 V* V4171 Sgr No* 18 23 41.34 -22 59 28.7           ~ 29 0
9 V* V693 CrA No* 18 41 57.8 -37 31 14           ~ 125 0
10 V* V838 Her No* 18 46 31.4714863335 +12 14 02.104189516           ~ 304 0
11 V* V444 Sct No* 18 47 09.91 -08 20 53.6           ~ 35 0
12 V* V1419 Aql No* 19 13 06.7917062592 +01 34 23.356169184           ~ 82 0
13 V* V1370 Aql No* 19 23 21.2448589896 +02 29 26.326100040           ~ 172 0
14 V* V1974 Cyg No* 20 30 31.6546001712 +52 37 50.837478240           ~ 597 0

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