Background-limited Imaging in the Near Infrared with Warm InGaAs Sensors: Applications for Time-domain Astronomy by Simcoe, Robert A, Fűrész, Gábor, Sullivan, Peter W, Hellickson, Tim, Malonis, Andrew, Kasliwal, Mansi, Shectman, Stephen A, Kollmeier, Juna A, Moore, Anna

“…© 2019. The American Astronomical Society. All rights reserved.. We describe test observations made with a customized 640 ×512 pixel indium gallium arsenide (InGaAs) prototype astronomical camera on the 2.5 m DuPont telescope. …”
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NuSTAR and Chandra Observations of the Galactic Center Nonthermal X-Ray Filament G0.13–0.11: A Pulsar-wind-nebula-driven Magnetic Filament by Zhang, Shuo, Zhu, Zhenlin, Li, Hui, Pasham, Dheeraj, Li, Zhiyuan, Clavel, Maïca, Baganoff, Frederick K, Perez, Kerstin, Mori, Kaya, Hailey, Charles J

“…© 2020. The American Astronomical Society. All rights reserved. One of the most unique phenomena in the Galactic center region is the existence of numerous long and narrow filamentary structures within a few hundred parsecs of Sgr A∗. …”
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Characterizing K2 Candidate Planetary Systems Orbiting Low-mass Stars. IV. Updated Properties for 86 Cool Dwarfs Observed during Campaigns 1–17 by Dressing, Courtney D, Hardegree-Ullman, Kevin, Schlieder, Joshua E, Newton, Elisabeth R, Vanderburg, Andrew, Feinstein, Adina D, Duvvuri, Girish M, Arnold, Lauren, Bristow, Makennah, Thackeray, Beverly, Abrahams, Ellianna Schwab, Ciardi, David R, Crossfield, Ian JM, Yu, Liang, Martinez, Arturo O, Christiansen, Jessie L, Crepp, Justin R, Isaacson, Howard

“…© 2019. The American Astronomical Society. All rights reserved. We present revised stellar properties for 172 K2 target stars that were identified as possible hosts of transiting planets during Campaigns 1-17. …”
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A Pair of TESS Planets Spanning the Radius Valley around the Nearby Mid-M Dwarf LTT 3780

“…© 2020. The American Astronomical Society. All rights reserved We present the confirmation of two new planets transiting the nearby mid-M dwarf LTT 3780 (TIC 36724087, TOI-732, V = 13.07, K s = 8.204, R s = 0.374 R o˙, M s = 0.401 M o˙, d = 22 pc). …”
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Revisiting the HIP 41378 System with K 2 and Spitzer by Berardo, David, Crossfield, Ian JM, Werner, Michael, Petigura, Erik, Christiansen, Jessie, Ciardi, David R, Dressing, Courtney, Fulton, Benjamin J, Gorjian, Varoujan, Greene, Thomas P, Hardegree-Ullman, Kevin, Kane, Stephen R, Livingston, John, Morales, Farisa, Schlieder, Joshua E

“…© 2019. The American Astronomical Society. All rights reserved. We present new observations of the multiplanet system HIP 41378, a bright star (V = 8.9, K s = 7.7) with five known transiting planets. …”
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Scaling K2 . II. Assembly of a Fully Automated C5 Planet Candidate Catalog Using EDI-Vetter by Zink, Jon K, Hardegree-Ullman, Kevin K, Christiansen, Jessie L, Dressing, Courtney D, Crossfield, Ian Jm, Petigura, Erik A, Schlieder, Joshua E, Ciardi, David R

“…© 2020. The American Astronomical Society. All rights reserved.. We present a uniform transiting exoplanet candidate list for Campaign 5 of the K2 mission. …”
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TOI-503: The First Known Brown-dwarf Am-star Binary from the TESS Mission

“…© 2020. The American Astronomical Society. All rights reserved.. We report the discovery of an intermediate-mass transiting brown dwarf (BD), TOI-503b, from the TESS mission. …”
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GW190814: Gravitational Waves from the Coalescence of a 23 Solar Mass Black Hole with a 2.6 Solar Mass Compact Object by LIGO Scientific Collaboration, Virgo Collaboration

“…© 2020. The American Astronomical Society.. We report the observation of a compact binary coalescence involving a 22.2-24.3 M o˙ black hole and a compact object with a mass of 2.50-2.67 M o˙ (all measurements quoted at the 90% credible level). …”
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Stellar Metallicities from SkyMapper Photometry I: A Study of the Tucana II Ultra-faint Dwarf Galaxy by Chiti, Anirudh, Frebel, Anna, Jerjen, Helmut, Kim, Dongwon, Norris, John E

“…© 2020. The American Astronomical Society. All rights reserved. We present a study of the ultra-faint Milky Way dwarf satellite galaxy Tucana II using deep photometry from the 1.3 m SkyMapper telescope at Siding Spring Observatory, Australia. …”
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The R-Process Alliance: A Very Metal-poor, Extremely r-process-enhanced Star with [Eu/Fe] = + 2.2, and the Class of r-III Stars by Cain, M, Frebel, A, Ji, AP, Placco, VM, Ezzeddine, R, Roederer, IU, Hattori, K, Beers, TC, Meléndez, J, Hansen, TT, Sakari, CM

“…© 2020. The American Astronomical Society. All rights reserved. We report the discovery of J1521-3538, a bright (V = 12.2), very metal-poor ([Fe/H] = -2.8) strongly r-process-enhanced field horizontal branch star, based on a high-resolution, high signal-to-noise Magellan/MIKE spectrum. …”
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The R-Process Alliance: Fourth Data Release from the Search for R-process-enhanced Stars in the Galactic Halo by Holmbeck, EM, Hansen, TT, Beers, TC, Placco, VM, Whitten, DD, Rasmussen, KC, Roederer, IU, Ezzeddine, R, Sakari, CM, Frebel, A, Drout, MR, Simon, JD, Thompson, IB, Bland-Hawthorn, J, Gibson, BK, Grebel, EK, Kordopatis, G, Kunder, A, Meléndez, J, Navarro, JF, Reid, WA, Seabroke, G, Steinmetz, M, Watson, F, Wyse, RFĠ

“…© 2020. The American Astronomical Society. All rights reserved. This compilation is the fourth data release from the R-Process Alliance (RPA) search for r-process-enhanced stars and the second release based on "snapshot"high-resolution (R ∼ 30,000) spectra collected with the du Pont 2.5 m Telescope. …”
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Scaling K2. III. Comparable Planet Occurrence in the FGK Samples of Campaign 5 and Kepler by Zink, Jon K., Hardegree-Ullman, Kevin K., Christiansen, Jessie L., Petigura, Erik A., Dressing, Courtney D., Schlieder, Joshua E., Ciardi, David R., Crossfield, Ian Jm

“…© 2020. The American Astronomical Society. All rights reserved.. Using our K2 Campaign 5 fully automated planet-detection data set (43 planets), which has corresponding measures of completeness and reliability, we infer an underlying planet population model for the FGK dwarf sample (9257 stars). …”
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The Destruction and Recreation of the X-Ray Corona in a Changing-look Active Galactic Nucleus by Ricci, C, Kara, E, Loewenstein, M, Trakhtenbrot, B, Arcavi, I, Remillard, R, Fabian, AC, Gendreau, KC, Arzoumanian, Z, Li, R, Ho, LC, MacLeod, CL, Cackett, E, Altamirano, D, Gandhi, P, Kosec, P, Pasham, D, Steiner, J, Chan, CH

“…© 2020. The American Astronomical Society. All rights reserved. We present the drastic transformation of the X-ray properties of the active galactic nucleus (AGN) 1ES 1927+654, following a changing-look event. …”
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Broadband X-Ray Observation of Broad-line Radio Galaxy 3C 109 by Chalise, S, Lohfink, AM, Kara, E, Fabian, AC

“…© 2020. The American Astronomical Society. All rights reserved. We present a study of the central engine in the broad-line radio galaxy 3C 109. …”
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Broadband X-Ray Observation of Broad-line Radio Galaxy 3C 109 by Chalise, Sulov, Lohfink, Anne M., Kara, Erin A, Fabian, Andrew C.

“…© 2020. The American Astronomical Society. All rights reserved. We present a study of the central engine in the broad-line radio galaxy 3C 109. …”
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Imaging and Modeling Data from the Hydrogen Epoch of Reionization Array by Ewall-Wice, Aaron Michael, Hewitt, Jacqueline N, Kim, Honggeun, Neben, Abraham Richard, Mena Parra, Juan David, Zheng, Haoxuan

“…© 2020. The American Astronomical Society. All rights reserved. We analyze data from the Hydrogen Epoch of Reionization Array (HERA). …”
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The Massive and Distant Clusters of WISE Survey. VI. Stellar Mass Fractions of a Sample of High-redshift Infrared-selected Clusters by Decker, Bandon, Brodwin, Mark, Abdulla, Zubair, Gonzalez, Anthony H, Marrone, Daniel P, O’Donnell, Christine, Stanford, SA, Wylezalek, Dominika, Carlstrom, John E, Eisenhardt, Peter RM, Mantz, Adam, Mo, Wenli, Moravec, Emily, Stern, Daniel, Aldering, Greg, Ashby, Matthew LN, Boone, Kyle, Hayden, Brian, Gupta, Nikhel, McDonald, Michael A.

“…© 2019. The American Astronomical Society. All rights reserved. We present measurements of the stellar mass fractions ( f∗) for a sample of high-redshift (0.93≤.z≤1.32) infrared-selected galaxy clusters from the Massive and Distant Clusters of WISE Survey (MaDCoWS) and compare them to the stellar mass fractions of Sunyaev-Zel-dovich (SZ) effect-selected clusters in a similar mass and redshift range from the South Pole Telescope (SPT)-SZ Survey. …”
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Revealing a Highly Dynamic Cluster Core in Abell 1664 with Chandra by Calzadilla, Michael S, Russell, Helen R, McDonald, Michael A, Fabian, Andrew C, Baum, Stefi A, Combes, Françoise, Donahue, Megan, Edge, Alastair C, McNamara, Brian R, Nulsen, Paul EJ, O’Dea, Christopher P, Oonk, JB Raymond, Tremblay, Grant R, Vantyghem, Adrian N

“…© 2019. The American Astronomical Society. All rights reserved. We present new, deep (245 ks) Chandra observations of the galaxy cluster Abell 1664 (z =0.1283). …”
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Discovery of a Powerful >10 61 erg AGN Outburst in the Distant Galaxy Cluster SPT-CLJ0528-5300 by Calzadilla, Michael S, McDonald, Michael, Bayliss, Matthew, Benson, Bradford A, Bleem, Lindsey E, Brodwin, Mark, Edge, Alastair C, Floyd, Benjamin, Gupta, Nikhel, Hlavacek-Larrondo, Julie, McNamara, Brian R, Reichardt, Christian L

“…© 2019. The American Astronomical Society. All rights reserved. We present ∼103 ks of Chandra observations of the galaxy cluster SPT-CLJ0528-5300 (SPT0528, z = 0.768). …”
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Resolving CO (2−1) in z ∼ 1.6 Gas-rich Cluster Galaxies with ALMA: Rotating Molecular Gas Disks with Possible Signatures of Gas Stripping by Noble, AG, Muzzin, A, McDonald, M, Rudnick, G, Matharu, J, Cooper, MC, Demarco, R, Lidman, C, Nantais, J, van Kampen, E, Webb, TMA, Wilson, G, Yee, HKC

“…© 2019. The American Astronomical Society. All rights reserved. We present the first spatially resolved observations of molecular gas in a sample of cluster galaxies beyond z > 0.1. …”
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