CaltechAUTHORS
Published February 20, 2023 | Version Published
Journal Article Open

GOALS-JWST: Pulling Back the Curtain on the AGN and Star Formation in VV 114

Creators

  • 1. ROR icon Carnegie Observatories
  • 2. ROR icon Chalmers University of Technology
  • 3. ROR icon National Radio Astronomy Observatory
  • 4. ROR icon University of Virginia
  • 5. ROR icon University of Crete
  • 6. ROR icon FORTH Institute of Astrophysics
  • 7. ROR icon European University Cyprus
  • 8. ROR icon University of Florida
  • 9. ROR icon Infrared Processing and Analysis Center
  • 10. ROR icon Hiroshima University
  • 11. ROR icon University of Massachusetts Amherst
  • 12. ROR icon California Institute of Technology
  • 13. ROR icon Space Telescope Science Institute
  • 14. ROR icon University of California, Los Angeles
  • 15. ROR icon University of Toledo
  • 16. ROR icon Centre of Excellence for All-Sky Astrophysics
  • 17. ROR icon University of California, Irvine
  • 18. ROR icon Leiden University
  • 19. ROR icon Monash University
  • 20. ROR icon University of Barcelona
  • 21. ROR icon Institució Catalana de Recerca i Estudis Avançats
  • 22. ROR icon Spanish National Research Council
  • 23. ROR icon Institut d'Estudis Espacials de Catalunya
  • 24. ROR icon Glendale Community College
  • 25. ROR icon University of Memphis
  • 26. ROR icon University of Hawaii at Manoa
  • 27. ROR icon Occidental College

Abstract

We present results from the James Webb Space Telescope Director's Discretionary Time Early Release Science program 1328 targeting the nearby, luminous infrared galaxy, VV 114. We use the MIRI and NIRSpec instruments to obtain integral-field spectroscopy of the heavily obscured eastern nucleus (V114E) and surrounding regions. The spatially resolved, high-resolution spectra reveal the physical conditions in the gas and dust over a projected area of 2–3 kpc that includes the two brightest IR sources, the NE and SW cores. Our observations show for the first time spectroscopic evidence that the SW core hosts an active galactic nucleus as evidenced by its very low 6.2 μm and 3.3 μm polycyclic aromatic hydrocarbon equivalent widths (0.12 and 0.017 μm, respectively) and mid- and near-IR colors. Our observations of the NE core show signs of deeply embedded star formation including absorption features due to aliphatic hydrocarbons, large quantities of amorphous silicates, as well as HCN due to cool gas along the line of sight. We detect elevated [Fe ii]/Pfα consistent with extended shocks coincident with enhanced emission from warm H2, far from the IR-bright cores and clumps. We also identify broadening and multiple kinematic components in both H2 and fine structure lines caused by outflows and previously identified tidal features.

Additional Information

© 2023. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. We thank the referee for their helpful comments. This work is based on observations made with the NASA/ESA/CSA JWST. The research was supported by NASA grant JWST-ERS-01328. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. The specific observations analysed can be accessed via 10.17909/yqk1-jr92. V.U. acknowledges funding support from NASA Astrophysics Data Analysis Program (ADAP) grant 80NSSC20K0450. The Flatiron Institute is supported by the Simons Foundation. A.M.M. acknowledges support from the National Science Foundation under grant No. 2009416. A.S.E. and S.L. acknowledge support from NASA grants HST-GO15472 and HST-GO16914. Y.S. was funded in part by the NSF through the Grote Reber Fellowship Program administered by Associated Universities, Inc./National Radio Astronomy Observatory. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. F.M-S. acknowledges support from NASA through ADAP award 80NSSC19K1096. S.A. gratefully acknowledges support from an ERC Advanced grant 789410, from the Swedish Research Council and from the Knut and Alice Wallenberg (KAW) Foundation. S.A. gratefully acknowledges John Black for helpful discussions. K.I. acknowledges support by the Spanish MCIN under grant PID2019-105510GB-C33/AEI/10.13039/501100011033. This work was also partly supported by the Spanish program Unidad de Excelencia Mara de Maeztu CEX2020-001058-M, financed by MCIN/AEI/10.13039/501100011033. The computations presented here were conducted through Carnegie's partnership in the Resnick High Performance Computing Center, a facility supported by Resnick Sustainability Institute at the California Institute of Technology. Finally, this research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. Facilities: JWST (NIRCam - , NIRSpec and MIRI). -

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Additional details

Identifiers

Eprint ID
120241
Resolver ID
CaltechAUTHORS:20230321-821389800.53

Funding

NASA
JWST-ERS-01328
NASA
NAS 5-03127
NASA
80NSSC20K0450
Simons Foundation
NSF
AST-2009416
NASA
HST-GO15472
NASA
HST-GO16914
National Radio Astronomy Observatory
NASA
80NSSC19K1096
European Research Council (ERC)
789410
Swedish Research Council
Knut and Alice Wallenberg Foundation
Ministerio de Ciencia e Innovación (MICINN)
PID2019-105510GB-C33/AEI/10.13039/501100011033
Unidad de Excelencia María de Maeztu
CEX2020-001058-M
Ministerio de Ciencia e Innovación (MICINN)
MCIN/AEI/10.13039/501100011033
NASA/JPL/Caltech

Dates

Created
2023-05-17
Created from EPrint's datestamp field
Updated
2023-05-17
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
Astronomy Department, Infrared Processing and Analysis Center (IPAC), Resnick Sustainability Institute, Division of Physics, Mathematics and Astronomy (PMA)