PHANGS–JWST First Results: Dust-embedded Star Clusters in NGC 7496 Selected via 3.3 μm PAH Emission

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Fältnamn	Indikatorer	Metadata
000		04777naa a2200865 4500
001		oai:DiVA.org:su-215797
003		SwePub
008		230329s2023 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-2157972 URI
024	7	a https://doi.org/10.3847/2041-8213/aca6532 DOI
040		a (SwePub)su
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Rodríguez, M. Jimena4 aut
245	1 0	a PHANGS–JWST First Results :b Dust-embedded Star Clusters in NGC 7496 Selected via 3.3 μm PAH Emission
264		c 2023-02-16
264	1	b American Astronomical Society,c 2023
338		a print2 rdacarrier
520		a The earliest stages of star formation occur enshrouded in dust and are not observable in the optical. Here we leverage the extraordinary new high-resolution infrared imaging from JWST to begin the study of dust-embedded star clusters in nearby galaxies throughout the Local Volume. We present a technique for identifying dust-embedded clusters in NGC 7496 (18.7 Mpc), the first galaxy to be observed by the PHANGS–JWST Cycle 1 Treasury Survey. We select sources that have strong 3.3 μm PAH emission based on a F300M − F335M color excess and identify 67 candidate embedded clusters. Only eight of these are found in the PHANGS-HST optically selected cluster catalog, and all are young (six have SED fit ages of ∼1 Myr). We find that this sample of embedded cluster candidates may significantly increase the census of young clusters in NGC 7496 from the PHANGS-HST catalog; the number of clusters younger than ∼2 Myr could be increased by a factor of 2. Candidates are preferentially located in dust lanes and are coincident with the peaks in the PHANGS-ALMA CO (2–1) maps. We take a first look at concentration indices, luminosity functions, SEDs spanning from 2700 Å to 21 μm, and stellar masses (estimated to be between ∼104 and 105 M⊙). The methods tested here provide a basis for future work to derive accurate constraints on the physical properties of embedded clusters, characterize the completeness of cluster samples, and expand analysis to all 19 galaxies in the PHANGS–JWST sample, which will enable basic unsolved problems in star formation and cluster evolution to be addressed.
650	7	a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650	7	a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
653		a Star formation
653		a Star clusters
653		a Young star clusters
653		a Spiral galaxies
653		a Surveys
653		a Interstellar dust
653		a Polycyclic aromatic hydrocarbons
700	1	a Lee, Janice C.4 aut
700	1	a Whitmore, B. C.4 aut
700	1	a Thilker, David A.4 aut
700	1	a Maschmann, Daniel4 aut
700	1	a Chandar, Rupali4 aut
700	1	a Deger, Sinan,d 1985-u Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)side0330
700	1	a Boquien, Médéric4 aut
700	1	a Dale, Daniel A.4 aut
700	1	a Larson, Kirsten L.4 aut
700	1	a Williams, Thomas G.4 aut
700	1	a Kim, Hwihyun4 aut
700	1	a Schinnerer, Eva4 aut
700	1	a Rosolowsky, Erik4 aut
700	1	a Leroy, Adam K.4 aut
700	1	a Emsellem, Eric4 aut
700	1	a Sandstrom, Karin M.4 aut
700	1	a Kruijssen, J. M. Diederik4 aut
700	1	a Grasha, Kathryn4 aut
700	1	a Watkins, Elizabeth J.4 aut
700	1	a Barnes, Ashley. T.4 aut
700	1	a Sormani, Mattia C.4 aut
700	1	a Kim, Jaeyeon4 aut
700	1	a Anand, Gagandeep S.4 aut
700	1	a Chevance, Mélanie4 aut
700	1	a Bigiel, F.4 aut
700	1	a Klessen, Ralf S.4 aut
700	1	a Hassani, Hamid4 aut
700	1	a Liu, Daizhong4 aut
700	1	a Faesi, Christopher M.4 aut
700	1	a Cao, Yixian4 aut
700	1	a Belfiore, Francesco4 aut
700	1	a Pessa, Ismael4 aut
700	1	a Kreckel, Kathryn4 aut
700	1	a Groves, Brent4 aut
700	1	a Pety, Jérôme4 aut
700	1	a Indebetouw, Rémy4 aut
700	1	a Egorov, Oleg V.4 aut
700	1	a Blanc, Guillermo A.4 aut
700	1	a Saito, Toshiki4 aut
700	1	a Hughes, Annie4 aut
710	2	a Stockholms universitetb Fysikum4 org
773	0	t Astrophysical Journal Lettersd : American Astronomical Societyg 944:2q 944:2x 2041-8205x 2041-8213
856	4	u https://doi.org/10.3847/2041-8213/aca653y Fulltext
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-215797
856	4 8	u https://doi.org/10.3847/2041-8213/aca653

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Av författaren/redakt...: Rodríguez, M. Ji ...; Lee, Janice C.; Whitmore, B. C.; Thilker, David A ...; Maschmann, Danie ...; Chandar, Rupali; visa fler...; Deger, Sinan, 19 ...; Boquien, Médéric; Dale, Daniel A.; Larson, Kirsten ...; Williams, Thomas ...; Kim, Hwihyun; Schinnerer, Eva; Rosolowsky, Erik; Leroy, Adam K.; Emsellem, Eric; Sandstrom, Karin ...; Kruijssen, J. M. ...; Grasha, Kathryn; Watkins, Elizabe ...; Barnes, Ashley. ...; Sormani, Mattia ...; Kim, Jaeyeon; Anand, Gagandeep ...; Chevance, Mélani ...; Bigiel, F.; Klessen, Ralf S.; Hassani, Hamid; Liu, Daizhong; Faesi, Christoph ...; Cao, Yixian; Belfiore, France ...; Pessa, Ismael; Kreckel, Kathryn; Groves, Brent; Pety, Jérôme; Indebetouw, Rémy; Egorov, Oleg V.; Blanc, Guillermo ...; Saito, Toshiki; Hughes, Annie; visa färre...

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