2025AJ....170...24W

Query : 2025AJ....170...24W

2025AJ....170...24W - Astron. J., 170, 24 (2025/July-0)

Multiple Generation Star Formation in Cepheus Flare.

WANG F., FANG M., FU X., SU Y., CHEN X., ZHANG S., LIU P., WANG X.-L., TIAN H., CUI W. and LI Z.

Abstract (from CDS):

We present an analysis of the young stellar moving group ASCC 127 using Gaia DR3 data, significantly expanding its membership to 3971 stars-double the number identified in previous studies. Using kinematic and distance criteria, ASCC 127 is divided into five subgroups (Groups 1-5) with ages spanning from 15 to 32 Myr. Groups 1-5 are spatially linked to the Cepheus Flare star-forming region, revealing potential evidence of four sequential star formation episodes at approximately 32 Myr, 20 Myr, 15 Myr, and 7 Myr. Through dust and gas mapping, we identify a spatial cavity extending several tens of parsecs, which may have resulted from feedback processes such as supernovae associated with earlier generations of stars in the region. This structure, along with the larger Loop III feature, indicates that feedback from massive stars likely influenced the interstellar medium (ISM). By integrating young stellar populations with ISM studies, we provide a detailed picture of the feedback-driven star-formation history in the Cepheus Flare region.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Star forming regions - Moving clusters

Status at CDS : Large table(s) of objects being ingested in VizieR.

Simbad objects: 18

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Number of rows : 18
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 NAME Loop III SR? 01 12 +78.3           ~ 97 1
2 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
3 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
4 NAME Gal Anticenter reg 05 46 +28.9           ~ 1024 0
5 NAME Mon I MoC 06 35 +10.1           ~ 268 0
6 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
7 LDN 1148 DNe 20 40 31.6 +67 21 45           ~ 68 0
8 LDN 1158 DNe 20 44.5 +67 41           ~ 37 0
9 LDN 1228 DNe 20 57 13 +77 35.8           ~ 131 0
10 NGC 7023 OpC 21 01 36.9 +68 09 48           ~ 739 0
11 LDN 1177 DNe 21 17 38.62 +68 17 34.0           ~ 95 1
12 LDN 1219 DNe 22 11.6 +71 00           ~ 15 0
13 LDN 1217 DNe 22 13.1 +70 45           ~ 11 0
14 LDN 1235 DNe 22 14 55 +73 25.0           ~ 27 0
15 LDN 1251 DNe 22 36.1 +75 16           ~ 119 0
16 [KC2019] Theia 57 As* 22 52 44.05 +57 30 39.4           ~ 4 0
17 [KPR2005] 127 OpC 23 09 14.3 +64 59 56           ~ 51 0
18 NAME Cepheus Flare MoC 23 34 +72.0           ~ 142 0

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