PHANGS-JWST First Results: The Influence of Stellar Clusters on Polycyclic Aromatic Hydrocarbons in Nearby Galaxies

被引：23

作者：

Dale, Daniel A. ^{[1
]}

Boquien, Mederic ^{[2
]}

Barnes, Ashley T. ^{[3
]}

Belfiore, Francesco ^{[4
]}

Bigiel, Frank ^{[3
]}

Cao, Yixian ^{[5
]}

Chandar, Rupali ^{[6
]}

Chastenet, Jeremy ^{[7
]}

Chevance, Melanie ^{[8
]}

Deger, Sinan ^{[9
]}

Egorov, Oleg V. ^{[10
]}

Grasha, Kathryn ^{[11
,12
]}

Groves, Brent ^{[13
]}

Hassani, Hamid ^{[14
]}

Henny, Kiana F. ^{[1
]}

Klessen, Ralf S. ^{[8
,15
]}

Kreckel, Kathryn ^{[10
]}

Kruijssen, J. M. Diederik ^{[16
]}

Larson, Kirsten L. ^{[17
]}

Lee, Janice C. ^{[18
]}

Leroy, Adam K. ^{[19
]}

Liu, Daizhong ^{[5
]}

Murphy, Eric J. ^{[20
]}

Rosolowsky, Erik ^{[14
]}

Sandstrom, Karin ^{[21
]}

Schinnerer, Eva ^{[22
]}

Sutter, Jessica ^{[21
]}

Thilker, David A. ^{[23
]}

Watkins, Elizabeth J. ^{[10
]}

Whitmore, Bradley C. ^{[24
]}

Williams, Thomas G. ^{[22
,25
]}

机构：

[1] Univ Wyoming, Dept Phys & Astron, Laramie, WY 82071 USA

[2] Univ Antofagasta, Ctr Astron CITEVA, Ave Angamos 601, Antofagasta, Chile

[3] Univ Bonn, Argelander Inst Astron, Hugel 71, D-53121 Bonn, Germany

[4] INAF, Arcetri Astrophys Observ, Largo E Fermi 5, I-50125 Florence, Italy

[5] Max Planck Inst Extraterr Phys MPE, Giessenbachstr 1, D-85748 Garching, Germany

[6] Univ Toledo, Ritter Astrophys Res Ctr, Toledo, OH 43606 USA

[7] Univ Ghent, Sterrenkundig Observ, Krijgslaan 281 S9, B-9000 Ghent, Belgium

[8] Heidelberg Univ, Inst Theoret Astrophys, Zent Astron, Albert Ueberle Str 2, D-69120 Heidelberg, Germany

[9] CALTECH, TAPIR, Pasadena, CA 91125 USA

[10] Heidelberg Univ, Astron Rechen Inst, Zent Astron, Monchhofstr 12-14, D-69120 Heidelberg, Germany

[11] Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 2611, Australia

[12] ARC Ctr Excellence All Sky Astrophys 3 Dimens ASTR, Stromlo, ACT, Australia

[13] Univ Western Australia, Int Ctr Radio Astron Res, 35 Stirling Highway, Crawley, WA 6009, Australia

[14] Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada

[15] Heidelberg Univ, Interdisziplinares Zent Wissensch Rechnen, Neuenheimer Feld 205, D-69120 Heidelberg, Germany

[16] Cosm Origins Life COOL Res DAO, Salt Lake City, UT USA

[17] AURA European Space Agcy ESA, Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA

[18] NSF NOIRLab, Gemini Observ, 950 N Cherry Ave, Tucson, AZ 85719 USA

[19] Ohio State Univ, Dept Astron, 140 West 18th Ave, Columbus, OH 43210 USA

[20] Natl Radio Astron Observ, 520 Edgemont Rd, Charlottesville, VA 22903 USA

[21] Univ Calif San Diego, Ctr Astrophys & Space Sci, Dept Phys, 9500 Gilman Dr, La Jolla, CA 92093 USA

[22] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[23] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[24] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA

[25] Univ Oxford, Subdept Astrophys, Dept Phys, Keble Rd, Oxford OX1 3RH, England

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2023年 / 944卷 / 02期

基金：

欧洲研究理事会; 澳大利亚研究理事会; 加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

INFRARED-EMISSION; DUST; HST; SPITZER; RESOLUTION; STARLIGHT; PHOTODISSOCIATION; SPECTRUM; FEATURES;

D O I：

10.3847/2041-8213/aca769

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a comparison of theoretical predictions of dust continuum and polycyclic aromatic hydrocarbon (PAH) emission with new JWST observations in three nearby galaxies: NGC 628, NGC 1365, and NGC 7496. Our analysis focuses on a total of 1063 compact stellar clusters and 2654 stellar associations previously characterized by the Hubble Space Telescope in the three galaxies. We find that the distributions and trends in the observed PAH-focused infrared colors generally agree with theoretical expectations, and that the bulk of the observations is more aligned with models of larger, ionized PAHs. These JWST data usher in a new era of probing interstellar dust and studying how the intense radiation fields near stellar clusters and associations play a role in shaping the physical properties of PAHs.

引用

页数：7

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