2026RNAAS..10...11B

Query : 2026RNAAS..10...11B

2026RNAAS..10...11B - Research Notes of the AAS, 10, 11 (2026/January-0)

Ionization Stratification and Stellar Feedback in the Galactic H II Region Sh2-124 from Deep Narrowband Imaging.

BADR I.

Abstract (from CDS):

I present deep narrowband imaging of the Galactic H II region Sh2-124 obtained with a total integration time of 79 hr using 2.5 nm S II, Hα, and O III filters. The observations reveal a well-defined shell morphology with clear ionization stratification, dense compression fronts, and photo-eroded dust structures. Comparison with known stellar content and molecular gas distributions suggests that Sh2-124 is shaped by ongoing stellar feedback operating within a non-uniform interstellar medium. The data also reveal faint extended emission beyond the bright shell, indicating partial leakage of ionizing radiation not readily apparent in existing survey data.

Abstract Copyright: © 2026. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): H II regions - Interstellar medium - Astrophotography

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 LBN 094.79-01.77 HII 21 38 26 +50 23.1           ~ 39 0

Query : 2026RNAAS..10...11B

Basic data :
LBN 094.79-01.77 -- HII Region
Other object types: otypes_help 		HII (1976A&AS,LBN,...), Rad (KR)
ICRS coord. (ep=J2000) : 		21 38 25.6 +50 23 04 (Middle-IR) [ ] E 2015ApJS..221...26A
FK4 coord. (ep=B1950 eq=1950) : 		21 36 38.7 +50 09 29 [ ]
Gal coord. (ep=J2000) : 		094.5140 -01.5240 [ ]
VLSR : 		-38.2 ~ ~ [0.2] (Rad) 2015ApJS..221...26A
Angular size (arcmin): 		12.88 6.15 90 (Rad) D 2015ApJS..221...26A
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Identifiers (4) :
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LBN 094.79-01.77 KR 7 LBN 426 SH 2-124

References (39 between 1850 and 2026) (Total 39)
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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Velocities : 1    Distance : 2   

   

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