Search Results - "Comerford, Julia M."

OFFSET ACTIVE GALACTIC NUCLEI AS TRACERS OF GALAXY MERGERS AND SUPERMASSIVE BLACK HOLE GROWTH by Comerford, Julia M, Greene, Jenny E

“…Offset active galactic nuclei (AGNs) are AGNs that are in ongoing galaxy mergers, which produce kinematic offsets in the AGNs relative to their host galaxies…”
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A Catalog of Hyper-luminous X-Ray Sources and Intermediate-mass Black Hole Candidates out to High Redshifts by Barrows, R. Scott, Mezcua, Mar, Comerford, Julia M.

“…Hyper-luminous X-ray sources (HLXs; LX > 1041 erg s−1) are off-nuclear X-ray sources in galaxies and strong candidates for intermediate-mass black holes…”
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A Catalog of Broad Hα and Hβ Active Galactic Nuclei in MaNGA by Negus, James, Comerford, Julia M., Müller Sánchez, Francisco

“…Abstract Broad H α and H β emission lines (FWHM > 1000 km s −1 ) are incredibly efficient tracers of the high-velocity clouds encircling active galactic nuclei…”
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Merger-driven Growth of Intermediate-mass Black Holes: Constraints from Hubble Space Telescope Imaging of Hyper-luminous X-Ray Sources by Barrows, R. Scott, Mezcua, Mar, Comerford, Julia M., Stern, Daniel

“…Abstract Hyper-luminous X-ray sources (HLXs) are extragalactic off-nuclear X-ray sources with luminosities exceeding the theoretical limit for accretion onto…”
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A Catalog of 204 Offset and Dual Active Galactic Nuclei (AGNs): Increased AGN Activation in Major Mergers and Separations under 4 kpc by Stemo, Aaron, Comerford, Julia M., Barrows, R. Scott, Stern, Daniel, Assef, Roberto J., Griffith, Roger L., Schechter, Aimee

“…Abstract During galaxy mergers, gas and dust are driven toward the centers of merging galaxies, triggering enhanced star formation and supermassive black hole…”
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A Census of WISE-selected Dual and Offset AGNs Across the Sky: New Constraints on Merger-driven Triggering of Obscured AGNs by Barrows, R. Scott, Comerford, Julia M., Stern, Daniel, Assef, Roberto J.

“…Abstract Pairs of galaxies hosting active galactic nuclei (AGNs) are powerful probes of merger-driven supermassive black hole (SMBH) growth as they can resolve…”
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SPATIALLY OFFSET ACTIVE GALACTIC NUCLEI. I. SELECTION AND SPECTROSCOPIC PROPERTIES by Barrows, R. Scott, Comerford, Julia M., Greene, Jenny E., Pooley, David

“…ABSTRACT We present a sample of 18 optically selected and X-ray-detected spatially offset active galactic nuclei (AGNs) from the Sloan Digital Sky Survey…”
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Erratum: “A Catalog of Host Galaxies for WISE-selected AGN: Connecting Host Properties with Nuclear Activity and Identifying Contaminants” (2021, ApJ, 922, 179) by Barrows, R. Scott, Comerford, Julia M., Stern, Daniel, Assef, Roberto J.

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Observational Constraints on Correlated Star Formation and Active Galactic Nuclei in Late-stage Galaxy Mergers by Barrows, R. Scott, Comerford, Julia M., Zakamska, Nadia L., Cooper, Michael C.

“…Galaxy mergers are capable of triggering both star formation and active galactic nuclei (AGNs) and therefore may represent an important pathway in the…”
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A Catalog of 71 Coronal Line Galaxies in MaNGA: [Ne v] Is an Effective AGN Tracer by Negus, James, Comerford, Julia M., Sánchez, Francisco Müller, Revalski, Mitchell, Riffel, Rogemar A., Bundy, Kevin, Nevin, Rebecca, Rembold, Sandro B.

“…Abstract Despite the importance of active galactic nuclei (AGNs) in galaxy evolution, accurate AGN identification is often challenging, as common AGN…”
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Spatially Offset Active Galactic Nuclei. II. Triggering in Galaxy Mergers by Barrows, R. Scott, Comerford, Julia M., Greene, Jenny E., Pooley, David

“…Galaxy mergers are likely to play a role in triggering active galactic nuclei (AGNs), but the conditions under which this process occurs are poorly understood…”
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KILOPARSEC-SCALE SPATIAL OFFSETS IN DOUBLE-PEAKED NARROW-LINE ACTIVE GALACTIC NUCLEI. I. MARKERS FOR SELECTION OF COMPELLING DUAL ACTIVE GALACTIC NUCLEUS CANDIDATES by COMERFORD, Julia M, GERKE, Brian F, STERN, Daniel, COOPER, Michael C, WEINER, Benjamin J, NEWMAN, Jeffrey A, MADSEN, Kristin, SCOTT BARROWS, R

“…Merger-remnant galaxies with kiloparsec (kpc) scale separation dual active galactic nuclei (AGNs) should be widespread as a consequence of galaxy mergers and…”
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THE STELLAR HALOS OF MASSIVE ELLIPTICAL GALAXIES. II. DETAILED ABUNDANCE RATIOS AT LARGE RADIUS by Greene, Jenny E, Murphy, Jeremy D, Graves, Genevieve J, Gunn, James E, Raskutti, Sudhir, Comerford, Julia M, Gebhardt, Karl

“…We study the radial dependence in stellar populations of 33 nearby early-type galaxies with central stellar velocity dispersions [sigma][low *] [> ~] 150 km s…”
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A Bayesian Analysis of SDSS J0914+0853, a Low-mass Dual AGN Candidate by Foord, Adi, Gültekin, Kayhan, Reynolds, Mark T., Hodges-Kluck, Edmund, Cackett, Edward M., Comerford, Julia M., King, Ashley L., Miller, Jon M., Runnoe, Jessie C.

“…We present the first results from Bayesian AnalYsis of Multiple AGN in X-rays (BAYMAX), a tool that uses a Bayesian framework to quantitatively evaluate…”
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The Molecular Gas in the NGC 6240 Merging Galaxy System at the Highest Spatial Resolution by Treister, Ezequiel, Messias, Hugo, Privon, George C., Nagar, Neil, Medling, Anne M., U, Vivian, Bauer, Franz E., Cicone, Claudia, Muñoz, Loreto Barcos, Evans, Aaron S., Muller-Sanchez, Francisco, Comerford, Julia M., Armus, Lee, Chang, Chin-Shin, Koss, Michael, Venturi, Giacomo, Schawinski, Kevin, Casey, Caitlin, Urry, C. Megan, Sanders, David B., Scoville, Nicholas, Sheth, Kartik

“…We present the highest-resolution-15 pc (0 03)-ALMA 12CO(2-1) line emission and 1.3 mm continuum maps, tracers of the molecular gas and dust, respectively, in…”
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A Candidate Dual QSO at Cosmic Noon by Glikman, Eilat, Langgin, Rachel, Johnstone, Makoto A., Yoon, Ilsang, Comerford, Julia M., Simmons, Brooke D., Stacey, Hannah, Lacy, Mark, O’Meara, John M.

“…Abstract We report the discovery of a candidate dual QSO at z = 1.889, a redshift that is in the era known as “cosmic noon” where most of the universe’s black…”
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An Active Galactic Nucleus Caught in the Act of Turning Off and On by Comerford, Julia M., Barrows, R. Scott, Müller-Sánchez, Francisco, Nevin, Rebecca, Greene, Jenny E., Pooley, David, Stern, Daniel, Harrison, Fiona A.

“…We present the discovery of an active galactic nucleus (AGN) that is turning off and then on again in the z = 0.06 galaxy SDSS J1354+1327. This episodic…”
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The Complex Gaseous and Stellar Environments of the Nearby Dual Active Galactic Nucleus Mrk 739 by Tubín, Dusán, Treister, Ezequiel, D’Ago, Giuseppe, Venturi, Giacomo, Bauer, Franz E., Privon, George C., Koss, Michael J., Ricci, Federica, Comerford, Julia M., Müller-Sánchez, Francisco

“…Abstract We present integral field spectroscopic observations of the nearby ( z ∼ 0.03) dual active galactic nuclei (AGNs) Mrk 739, whose projected nuclear…”
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THE STELLAR HALOS OF MASSIVE ELLIPTICAL GALAXIES by GREENE, Jenny E, MURPHY, Jeremy D, COMERFORD, Julia M, GEBHARDT, Karl, ADAMS, Joshua J

“…We use the Mitchell Spectrograph (formerly VIRUS-P) on the McDonald Observatory 2.7 m Harlan J. Smith Telescope to search for the chemical signatures of…”
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Optical, Near-IR, and Sub-mm IFU Observations of the Nearby Dual Active Galactic Nuclei MRK 463 by Treister, Ezequiel, Privon, George C., Sartori, Lia F., Nagar, Neil, Bauer, Franz E., Schawinski, Kevin, Messias, Hugo, Ricci, Claudio, U, Vivian, Casey, Caitlin, Comerford, Julia M., Muller-Sanchez, Francisco, Evans, Aaron S., Finlez, Carolina, Koss, Michael, Sanders, David B., Urry, C. Megan

“…We present optical and near-IR Integral Field Unit (IFU) and ALMA band 6 observations of the nearby dual active galactic nuclei (AGNs) Mrk 463. At a distance…”
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