The Astrophysical Journal Letters (Jan 2023)
GOALS-JWST: Pulling Back the Curtain on the AGN and Star Formation in VV 114
- J. Rich,
- S. Aalto,
- A. S. Evans,
- V. Charmandaris,
- G. C. Privon,
- T. Lai,
- H. Inami,
- S. Linden,
- L. Armus,
- T. Diaz-Santos,
- P. Appleton,
- L. Barcos-Muñoz,
- T. Böker,
- K. L. Larson,
- D. R. Law,
- M. A. Malkan,
- A. M. Medling,
- Y. Song,
- V. U,
- P. van der Werf,
- T. Bohn,
- M. J. I. Brown,
- L. Finnerty,
- C. Hayward,
- J. Howell,
- K. Iwasawa,
- F. Kemper,
- J. Marshall,
- J. M. Mazzarella,
- J. McKinney,
- F. Muller-Sanchez,
- E. J. Murphy,
- D. Sanders,
- B. T. Soifer,
- S. Stierwalt,
- J. Surace
Affiliations
- J. Rich
- ORCiD
- The Observatories of the Carnegie Institution for Science , 813 Santa Barbara Street, Pasadena, CA, 91101, USA
- S. Aalto
- ORCiD
- Department of Space, Earth and Environment, Chalmers University of Technology , SE-412 96 Gothenburg, Sweden
- A. S. Evans
- ORCiD
- National Radio Astronomy Observatory , 520 Edgemont Rd, Charlottesville, VA, 22903, USA; Department of Astronomy, University of Virginia , 530 McCormick Road, Charlottesville, VA, 22903, USA
- V. Charmandaris
- ORCiD
- Department of Physics, University of Crete , Heraklion, 71003, Greece; Institute of Astrophysics , Foundation for Research and Technology-Hellas (FORTH), Heraklion, 70013, Greece; School of Sciences, European University Cyprus , Diogenes street, Engomi, 1516 Nicosia, Cyprus
- G. C. Privon
- ORCiD
- National Radio Astronomy Observatory , 520 Edgemont Rd, Charlottesville, VA, 22903, USA; Department of Astronomy, University of Florida , P.O. Box 112055, Gainesville, FL, 32611, USA
- T. Lai
- ORCiD
- IPAC, California Institute of Technology , 1200 E. California Blvd., Pasadena, CA, 91125, USA
- H. Inami
- ORCiD
- Hiroshima Astrophysical Science Center, Hiroshima University , 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
- S. Linden
- ORCiD
- Department of Astronomy, University of Massachusetts at Amherst , Amherst, MA, 01003, USA
- L. Armus
- ORCiD
- IPAC, California Institute of Technology , 1200 E. California Blvd., Pasadena, CA, 91125, USA
- T. Diaz-Santos
- ORCiD
- Institute of Astrophysics , Foundation for Research and Technology-Hellas (FORTH), Heraklion, 70013, Greece; School of Sciences, European University Cyprus , Diogenes street, Engomi, 1516 Nicosia, Cyprus
- P. Appleton
- ORCiD
- IPAC, California Institute of Technology , 1200 E. California Blvd., Pasadena, CA, 91125, USA
- L. Barcos-Muñoz
- ORCiD
- Department of Astronomy, University of Virginia , 530 McCormick Road, Charlottesville, VA, 22903, USA
- T. Böker
- ORCiD
- European Space Agency, Space Telescope Science Institute, Baltimore, MD, 21218, USA
- K. L. Larson
- ORCiD
- AURA for the European Space Agency (ESA), Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD, 21218, USA
- D. R. Law
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD, 21218, USA
- M. A. Malkan
- ORCiD
- Department of Physics & Astronomy, 430 Portola Plaza, University of California , Los Angeles, CA, 90095, USA
- A. M. Medling
- ORCiD
- Department of Physics & Astronomy and Ritter Astrophysical Research Center, University of Toledo , Toledo, OH, 43606, USA; ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) ; Australia
- Y. Song
- ORCiD
- National Radio Astronomy Observatory , 520 Edgemont Rd, Charlottesville, VA, 22903, USA; Department of Astronomy, University of Virginia , 530 McCormick Road, Charlottesville, VA, 22903, USA
- V. U
- ORCiD
- Department of Physics and Astronomy, 4129 Frederick Reines Hall, University of California , Irvine, CA, 92697, USA
- P. van der Werf
- ORCiD
- Leiden Observatory, Leiden University , PO Box 9513, 2300 RA Leiden, The Netherlands
- T. Bohn
- Hiroshima Astrophysical Science Center, Hiroshima University , 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
- M. J. I. Brown
- ORCiD
- School of Physics and Astronomy, Monash University , Clayton, VIC 3800, Australia
- L. Finnerty
- ORCiD
- Department of Physics & Astronomy, 430 Portola Plaza, University of California , Los Angeles, CA, 90095, USA
- C. Hayward
- ORCiD
- Center for Computational Astrophysics, Flatiron Institute , 162 Fifth Avenue, New York, NY, 10010, USA
- J. Howell
- ORCiD
- IPAC, California Institute of Technology , 1200 E. California Blvd., Pasadena, CA, 91125, USA
- K. Iwasawa
- ORCiD
- Institut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB) , Martí i Franquès, 1, E-08028 Barcelona, Spain; ICREA , Pg. Lluís Companys 23, E-08010 Barcelona, Spain
- F. Kemper
- ORCiD
- ICREA , Pg. Lluís Companys 23, E-08010 Barcelona, Spain; Institut de Ciencies de l’Espai (ICE, CSIC) , Can Magrans, s/n, E-08193 Bellaterra, Barcelona, Spain; Institut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, Spain
- J. Marshall
- ORCiD
- Glendale Community College , 1500 N. Verdugo Rd., Glendale, CA, 91208, USA
- J. M. Mazzarella
- ORCiD
- IPAC, California Institute of Technology , 1200 E. California Blvd., Pasadena, CA, 91125, USA
- J. McKinney
- ORCiD
- Department of Astronomy, University of Massachusetts , Amherst, MA, 01003, USA
- F. Muller-Sanchez
- ORCiD
- Department of Physics and Materials Science, The University of Memphis , 3720 Alumni Avenue, Memphis, TN, 38152, USA
- E. J. Murphy
- ORCiD
- National Radio Astronomy Observatory , 520 Edgemont Road, Charlottesville, VA, 22903, USA
- D. Sanders
- ORCiD
- Institute for Astronomy, University of Hawaii , 2680 Woodlawn Drive, Honolulu, HI, 96822, USA
- B. T. Soifer
- Division of Physics, Mathematics and Astronomy, California Institute of Technology , 1200 E. California Blvd., Pasadena, CA, 91125, USA
- S. Stierwalt
- ORCiD
- Physics Department , 1600 Campus Road, Occidental College, Los Angeles, CA, 90041, USA
- J. Surace
- ORCiD
- IPAC, California Institute of Technology , 1200 E. California Blvd., Pasadena, CA, 91125, USA
- DOI
- https://doi.org/10.3847/2041-8213/acb2b8
- Journal volume & issue
-
Vol. 944,
no. 2
p. L50
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 μ m and 3.3 μ m polycyclic aromatic hydrocarbon equivalent widths (0.12 and 0.017 μ m, 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 ]/Pf α consistent with extended shocks coincident with enhanced emission from warm H _2 , far from the IR-bright cores and clumps. We also identify broadening and multiple kinematic components in both H _2 and fine structure lines caused by outflows and previously identified tidal features.
Keywords
