Jet Propulsion Laboratory

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2017 · astro-ph.GAShow all

74 papers · 2 filters

astro-ph.GA2017★ 69 cited

The TOP-SCOPE survey of Planck Galactic Cold Clumps: Survey overview and results of an exemplar source, PGCC G26.53+0.17

Tie Liu, Kee-Tae Kim, Mika Juvela +11

The low dust temperatures (<14 K) of Planck Galactic Cold Clumps (PGCCs) make them ideal targets to probe the initial conditions and very early phase of star formation. TOP-SCOPE i…

astro-ph.GA2017★ 5 cited

An Infrared Study of the Circumstellar Material Associated with the Carbon Star R Sculptoris

Matthew J. Hankins, Terry L. Herter, Matthias Maercker +2

The asymptotic giant branch (AGB) star R Sculptoris (R Scl) is one of the most extensively studied stars on the AGB. R Scl is a carbon star with a massive circumstellar shell ($M_{…

astro-ph.GA2017★ 27 cited

Spitzer Observations of the North Ecliptic Pole

H. Nayyeri, N. Ghotbi, A. Cooray +19

We present a photometric catalog for Spitzer Space Telescope warm mission observations of the North Ecliptic Pole (NEP; centered at $R.A. = 1 8^{h} 0 0^{m} 0 0^{s}$ , $\rm Decl.=66^d33^m38^s…

astro-ph.GA2017★ 1.1k cited

An 800-million-solar-mass black hole in a significantly neutral Universe at redshift 7.5

E. Bañados, B. P. Venemans, C. Mazzucchelli +15

Quasars are the most luminous non-transient objects known and as a result they enable studies of the Universe at the earliest cosmic epochs. Despite extensive efforts, however, the…

astro-ph.GA2017★ 66 cited

Heavy X-ray obscuration in the most-luminous galaxies discovered by WISE

F. Vito, W. N. Brandt, D. Stern +11

Hot Dust-Obscured Galaxies (Hot DOGs) are hyperluminous ( $L_{8 - 1000 μ m} > 1 0^{13} L_{⊙}$ ) infrared galaxies with extremely high (up to hundreds of K) dust tempe…

astro-ph.GA2017★ 19 cited

Joint NuSTAR and Chandra analysis of the obscured quasar in IC 2497 - Hanny's Voorwerp system

Lia F. Sartori, Kevin Schawinski, Michael J. Koss +9

We present new Nuclear Spectroscopic Telescope Array (NuSTAR) observations of the core of IC 2497, the galaxy associated with Hanny's Voorwerp. The combined fits of the Chandra (0.…

astro-ph.GA2017★ 11 cited

The Green Bank Ammonia Survey: Unveiling the Dynamics of the Barnard 59 star-forming Clump

E. Redaelli, F. O. Alves, P. Caselli +17

Understanding the early stages of star formation is a research field of ongoing development, both theoretically and observationally. In this context, molecular data have been conti…

astro-ph.GA2017★ 92 cited

Quasar Accretion Disk Sizes From Continuum Reverberation Mapping From the Dark Energy Survey

D. Mudd, P. Martini, Y. Zu +69

We present accretion disk size measurements for 15 luminous quasars at $0.7 \leq z \leq 1.9$ derived from $g r i z$ light curves from the Dark Energy Survey. We measure the disk sizes…

astro-ph.GA2017★ 109 cited

The Sloan Lens ACS Survey. XIII. Discovery of 40 New Galaxy-Scale Strong Lenses

Yiping Shu, Joel R. Brownstein, Adam S. Bolton +8

We present the full sample of 118 galaxy-scale strong-lens candidates in the Sloan Lens ACS (SLACS) Survey for the Masses (S4TM) Survey, which are spectroscopically selected from t…

astro-ph.GA2017★ 21 cited

Spectroscopic confirmation and velocity dispersions for twenty Planck galaxy clusters at 0.16<z<0.78

S. Amodeo, S. Mei, S. A. Stanford +8

We present Gemini and Keck spectroscopic redshifts and velocity dispersions for twenty clusters detected via the Sunyaev-Zel'dovich (SZ) effect by the Planck space mission, with es…

astro-ph.GA2017★ 5 cited

A molecular-line study of the interstellar bullet engine IRAS 05506+2414

Raghvendra Sahai, Chin-Fei Lee, Carmen Sanchez Contreras +3

We present interferometric and single-dish molecular line observations of the interstellar bullet-outflow source IRAS 05506+2414, whose wide-angle bullet spray is similar to the Or…

astro-ph.GA2017★ 26 cited

The Green Bank Ammonia Survey: Observations of Hierarchical Dense Gas Structures in Cepheus-L1251

Jared Keown, James Di Francesco, Helen Kirk +20

We use Green Bank Ammonia Survey observations of NH $_{3}$ (1,1) and (2,2) emission with 32'' FWHM resolution from a ~ 10 pc $^{2}$ portion of the Cepheus-L1251 molecular cloud to iden…

astro-ph.GA2017★ 10 cited

Investigating the evolution of the dual AGN system ESO~509-IG066

P. Kosec, M. Brightman, D. Stern +13

We analyze the evolution of the dual AGN in ESO 509-IG066, a galaxy pair located at z=0.034 whose nuclei are separated by 11 kpc. Previous observations with XMM-Newton on this dual…

astro-ph.GA2017★ 318 cited

Physical properties of 15 quasars at $z ≳ 6.5$

C. Mazzucchelli, E. Bañados, B. P. Venemans +21

Quasars are galaxies hosting accreting supermassive black holes; due to their brightness, they are unique probes of the early universe. To date, only few quasars have been reported…

astro-ph.GA2017★ 23 cited

An Active Galactic Nucleus Caught in the Act of Turning Off and On

Julia M. Comerford, R. Scott Barrows, Francisco Müller-Sánchez +5

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 nuclear activity is the resul…

astro-ph.GA2017★ 45 cited

Empirical Modeling of the Redshift Evolution of the [NII]/H $α$ -ratio for Galaxy Redshift Surveys

Andreas L. Faisst, Daniel Masters, Yun Wang +4

We present an empirical parameterization of the [NII]/H $α$ flux ratio as a function of stellar mass and redshift valid at 0 < z < 2.7 and 8.5 < log(M) < 11.0. This description can…

astro-ph.GA2017★ 44 cited

Predicting Hα emission line galaxy counts for future galaxy redshift surveys

Alexander Merson, Yun Wang, Andrew Benson +4

Knowledge of the number density of H $α$ emitting galaxies is vital for assessing the scientific impact of the Euclid and WFIRST missions. In this work we present predictions from a…

astro-ph.GA2017★ 31 cited

Methyl isocyanate CH3NCO: An important missing organic in current astrochemical networks

Liton Majumdar, Jean-Christophe Loison, Maxime Ruaud +3

Methyl isocyanate (CH3NCO) is one of the important complex organic molecules detected on the comet 67P/Churyumov-Gerasimenko by Rosetta's Philae lander. It was also detected in hot…

astro-ph.GA2017★ 14 cited

A Radio Relic and a Search for the Central Black Hole in the Abell 2261 Brightest Cluster Galaxy

Sarah Burke-Spolaor, Kayhan Gultekin, Marc Postman +4

We present VLA images and HST/STIS spectra of sources within the center of the brightest cluster galaxy (BCG) in Abell 2261. These observations were obtained to test the hypothesis…

astro-ph.GA2017★ 22 cited

Deep SOAR follow-up photometry of two Milky Way outer-halo companions discovered with Dark Energy Survey

E. Luque, B. Santiago, A. Pieres +48

We report the discovery of a new star cluster, DES 3, in the constellation of Indus, and deeper observations of the previously identified satellite DES J0222.7 $-$ 5217 (Eridanus III…

astro-ph.GA2017★ 20 cited

The Hunt for Red Quasars: Luminous Obscured Black Hole Growth Unveiled in the Stripe 82 X-ray Survey

Stephanie M. LaMassa, Eilat Glikman, Marcella Brusa +18

We present results of a ground-based near-infrared campaign with Palomar TripleSpec, Keck NIRSPEC, and Gemini GNIRS to target two samples of reddened active galactic nucleus (AGN)…

astro-ph.GA2017★ 13 cited

First Light II: Emission Line Extinction, Population III Stars, and X-ray Binaries

Kirk S. S. Barrow, John H. Wise, Aycin Aykutalp +3

We produce synthetic spectra and observations for metal-free stellar populations and high mass X-ray binaries in the Renaissance Simulations at a redshift of 15. We extend our meth…