2022MNRAS.516.4612T

Query : 2022MNRAS.516.4612T

2022MNRAS.516.4612T - Mon. Not. R. Astron. Soc., 516, 4612-4626 (2022/November-1)

PHANGS: constraining star formation time-scales using the spatial correlations of star clusters and giant molecular clouds.

TURNER J.A., DALE D.A., LILLY J., BOQUIEN M., DEGER S., LEE J.C., WHITMORE B.C., ANAND G.S., BENINCASA S.M., BIGIEL F., BLANC G.A., CHEVANCE M., EMSELLEM E., FAESI C.M., GLOVER S.C.O., GRASHA K., HUGHES A., KLESSEN R.S., KRECKEL K., KRUIJSSEN J.M.D., LEROY A.K., PAN H.-A., ROSOLOWSKY E., SCHRUBA A. and WILLIAMS T.G.

Abstract (from CDS):

In the hierarchical view of star formation, giant molecular clouds (GMCs) undergo fragmentation to form small-scale structures made up of stars and star clusters. Here we study the connection between young star clusters and cold gas across a range of extragalactic environments by combining the high resolution (1″) PHANGS-ALMA catalogue of GMCs with the star cluster catalogues from PHANGS-HST. The star clusters are spatially matched with the GMCs across a sample of 11 nearby star-forming galaxies with a range of galactic environments (centres, bars, spiral arms, etc.). We find that after 4 - 6 Myr the star clusters are no longer associated with any gas clouds. Additionally, we measure the autocorrelation of the star clusters and GMCs as well as their cross-correlation to quantify the fractal nature of hierarchical star formation. Young (≤10 Myr) star clusters are more strongly autocorrelated on kpc and smaller spatial scales than the $\gt \, 10$ Myr stellar populations, indicating that the hierarchical structure dissolves over time.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): galaxies: star clusters - galaxies: star formation

Simbad objects: 17

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Number of rows : 17
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 SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
2 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1614 2
3 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
4 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1934 1
5 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1987 2
6 NGC 1433 Sy2 03 42 01.4847418992 -47 13 18.929092656   10.84 9.99 9.61 10.2 ~ 447 0
7 NGC 1559 GiG 04 17 35.7508602240 -62 47 01.251567384   11.19 10.45 10.11 10.4 ~ 325 1
8 NGC 1566 Sy1 04 20 00.3968473248 -54 56 16.624708764 10.29 10.19 9.73 9.21 10.1 ~ 1051 2
9 NGC 1792 Sy1 05 05 14.4036930408 -37 58 50.064531168   10.68 10.18 9.53 10.4 ~ 261 1
10 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
11 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1238 2
12 M 66 AGN 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1509 4
13 NGC 4535 H2G 12 34 20.3443516704 +08 11 51.908488116   11.1       ~ 679 0
14 M 91 LIN 12 35 26.4446761320 +14 29 46.760333748   14.63 13.57     ~ 639 0
15 NGC 4571 GiC 12 36 56.3722998960 +14 13 02.296534836   13.6       ~ 368 1
16 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
17 NGC 6503 LIN 17 49 26.4207792072 +70 08 39.604132176 11.56 10.95 10.28 9.92   ~ 551 1

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