2023A&A...678A..95S

Query : 2023A&A...678A..95S

2023A&A...678A..95S - Astronomy and Astrophysics, volume 678A95 (2023/10-1)

A comparison of the Milky Way's recent star formation revealed by dust thermal emission and high-mass stars.

SOLER J.D., ZARI E., ELIA D., MOLINARI S., MININNI C., SCHISANO E., TRAFICANTE A., KLESSEN R.S., GLOVER S.C.O., HENNEBELLE P., COLMAN T., FRANKEL N. and WENGER T.

Abstract (from CDS):

We present a comparison of the Milky Way's star formation rate (SFR) surface density (∑SFR) obtained with two independent state-of-the-art observational methods. The first method infers ΣSFR from observations of the dust thermal emission from interstellar dust grains in far-infrared wavelengths registered in the Herschel infrared Galactic Plane Survey (Hi-GAL). The second method determines ΣSFR by modeling the current population of O-, B-, and A-type stars in a 6 kpc × 6 kpc area around the Sun. We find an agreement between the two methods within a factor of two for the mean SFRs and the SFR surface density profiles. Given the broad differences between the observational techniques and the independent assumptions in the methods for computing the SFRs, this agreement constitutes a significant advance in our understanding of the star formation of our Galaxy and implies that the local SFR has been roughly constant over the past 10 Myr.

Abstract Copyright: © The Authors 2023

Journal keyword(s): galaxies: star formation - Galaxy: structure - Galaxy: disk - Galaxy: evolution

Simbad objects: 32

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Number of rows : 32
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 LDN 1265 DNe 00 09.6 +58 52           ~ 19 0
2 LDN 1293 DNe 00 40 53.6 +63 04 53           ~ 13 0
3 LDN 1302 DNe 00 43.9 +61 51           ~ 11 0
4 LDN 1306 DNe 01 03.1 +62 16           ~ 10 0
5 W 3 MoC 02 27 04.10 +61 52 27.1           ~ 1064 3
6 NAME Heart Nebula HII 02 32.7 +61 27           ~ 336 1
7 NAME W3/W4/W5 Region SFR 02 40.0 +61 00           ~ 34 0
8 IC 1848 OpC 02 51 19.4 +60 25 32   6.87 6.5     ~ 522 2
9 NAME Gal Anticenter reg 05 46 +28.9           ~ 1024 0
10 Ass Gem OB 1 As* 06 09.8 +21 35           ~ 203 0
11 NAME Rosette Molecular Cloud MoC 06 34.7 +04 02           ~ 277 0
12 NAME Mon I MoC 06 35 +10.1           ~ 268 0
13 NAME Maddalena Cloud MoC 06 48.1 -03 52           ~ 100 0
14 Ass CMa OB 1 As* 07 07.0 -10 28           ~ 161 0
15 NAME Vela C Cld 08 57 -43.2           ~ 193 0
16 RCW 38 SFR 08 59 05.50 -47 30 39.4           ~ 327 2
17 NAME Carina Molecular Cloud Complex MoC 10 43 10 -59 38.2           ~ 97 0
18 NGC 3372 HII 10 45 02.23 -59 41 59.8           ~ 1071 2
19 IC 2944 OpC 11 38 20.00 -63 22 22.0           ~ 191 0
20 NAME Coalsack Nebula DNe 12 31 19 -63 44.6           ~ 275 0
21 NAME Norma Cloud Cld 16 34 -45.0           ~ 32 1
22 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
23 M 20 OpC 18 02 42 -22 58.3           ~ 456 1
24 Ass Ser OB 2 As* 18 18 -12.3           ~ 65 0
25 NGC 6604 OpC 18 18 03 -12 14.5           ~ 146 0
26 M 16 OpC 18 18 45.1 -13 47 31           ~ 1084 1
27 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1700 0
28 SH 2-106 HII 20 27 26.8 +37 22 49           ~ 453 1
29 NAME Cyg X Cld 20 30 04.7973633 +40 51 36.002197           ~ 962 1
30 NGC 7000 Cl* 20 58 47 +44 19.8           ~ 427 0
31 LDN 977 DNe 21 39.0 +43 14           ~ 38 0
32 NAME Ara reg ~ ~           ~ 22 0

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