Event Horizon TelescopeCollaboration; including Alef, W.; Azulay, R.; Baczko, A.-K.; Britzen, S.; Desvignes, G.; Eatough, R.P.; Karuppusamy, R.; Kim, J.-Y.; Kramer, M. et al.; Krichbaum, T.P.; Liu, K.; Lobanov, A.P.; Lu, R.-S.; MacDonald, N.R.; Menten, K.M.; Müller, C.; Noutsos, A.; Ortiz-León, G.N.; Ros, E.; Rottmann, H.; Roy, A.L.; Savolainen, T.; Shao, L.; Torne, P.; Wagner, J.; Wex, N.; Wharton, R.; Zensus, J.A.; Bach, U.; Dornbusch, S.; Dzib, S.A.; Graham, D.A.; Heyminck, S.; Muders, D.: First M87 Event Horizon Telescope Results. II. Array and Instrumentation. apjl 875 (1), L2, S. L2 (2019)

Gallo, L.C.; Gonzalez, A.G.; Waddell, S.G.H.; Ehler, H.J.S.; Wilkins, D.R.; Longinotti, A.L.; Grupe, D.; Komossa, S.; Kriss, G.A.; Pinto, C. et al.; Tripathi, S.; Fabian, A.C.; Krongold, Y.; Mathur, S.; Parker, M.L.; Pradhan, A.: Evidence for an emerging disc wind and collimated outflow during an X-ray flare in the narrow-line Seyfert 1 galaxy Mrk 335. mnras 484 (3), S. 4287 - 4297 (2019)

Gokus, A.; Angioni, R.: Fermi-LAT detection of renewed gamma-ray activity from the blazars PKS 0346-27 and PKS 2246+208. The Astronomer's Telegram 12693, S. 1 (2019)

Guseva, N.G.; Izotov, Y.I.; Fricke, K.J.; Henkel, C.: Mg II λ2797, λ2803 emission in a large sample of low-metallicity star-forming galaxies from SDSS DR14. aap 624, A21, S. A21 (2019)

Güsten, R.; Wiesemeyer, H.; Neufeld, D.; Menten, K.M.; Graf, U.U.; Jacobs, K.; Klein, B.; Ricken, O.; Risacher, C.; Stutzki, J.: Astrophysical detection of the helium hydride ion HeH+. nat 568 (7752), S. 357 - 359 (2019)

Hare, B.M.; Scholten, O.; Dwyer, J.; Trinh, T.N.G.; Buitink, S.; ter Veen, S.; Bonardi, A.; Corstanje, A.; Falcke, H.; Hörandel, J.R. et al.; Huege, T.; Mitra, P.; Mulrey, K.; Nelles, A.; Rachen, J.P.; Rossetto, L.; Schellart, P.; Winchen, T.; Anderson, J.; Avruch, I.M.; Bentum, M.J.; Blaauw, R.; Broderick, J.W.; Brouw, W.N.; Brüggen, M.; Butcher, H.R.; Ciardi, B.; Fallows, R.A.; de Geus, E.; Duscha, S.; Eislöffel, J.; Garrett, M.A.; Grießmeier, J.M.; Gunst, A.W.; van Haarlem, M.P.; Hessels, J.W.T.; Hoeft, M.; van der Horst, A.J.; Iacobelli, M.; Koopmans, L.V.E.; Krankowski, A.; Maat, P.; Norden, M.J.; Paas, H.; Pandey-Pommier, M.; Pandey, V.N.; Pekal, R.; Pizzo, R.; Reich, W.; Rothkaehl, H.; Röttgering, H.J.A.; Rowlinson, A.; Schwarz, D.J.; Shulevski, A.; Sluman, J.; Smirnov, O.; Soida, M.; Tagger, M.; Toribio, M.C.; van Ardenne, A.; Wijers, R.A.M.J.; van Weeren, R.J.; Wucknitz, O.; Zarka, P.; Zucca, P.: Needle-like structures discovered on positively charged lightning branches. nat 568 (7752), S. 360 - 363 (2019)

Hernández-Gómez, A.; Loinard, L.; Chandler, C.J.; Rodríguez, L.F.; Zapata, L.A.; Wilner, D.J.; Ho, P.T.P.; Caux, E.; Quénard, D.; Bottinelli, S. et al.; Brogan, C.L.; Hartmann, L.; Menten, K.M.: On the Nature of the Compact Sources in IRAS 16293-2422 Seen at Centimeter to Submillimeter Wavelengths. apj 875 (2), 94, S. 94 (2019)

Jankowski, F.; Bailes, M.; van Straten, W.; Keane, E.F.; Flynn, C.; Barr, E.D.; Bateman, T.; Bhandari, S.; Caleb, M.; Campbell-Wilson, D. et al.; Farah, W.; Green, A.J.; Hunstead, R.W.; Jameson, A.; Osłowski, S.; Parthasarathy, A.; Rosado, P.A.; Venkatraman Krishnan, V.: The UTMOST pulsar timing programme I: Overview and first results. mnras 484 (3), S. 3691 - 3712 (2019)

Kamali, F.; Henkel, C.; Koyama, S.; Kuo, C.Y.; Condon, J.J.; Brunthaler, A.; Reid, M.J.; Greene, J.E.; Menten, K.M.; Impellizzeri, C.M.V. et al.; Braatz, J.A.; Litzinger, E.; Kadler, M.: Accretion disk versus jet orientation in H2O megamaser galaxies. aap 624, A42, S. A42 (2019)

Li, D.; Lin, F.X.; Main, R.; Pen, U.-L.; van Kerkwijk, M.H.; Yang, I.-S.: Constraining magnetic fields through plasma lensing: application to the Black Widow pulsar. mnras 484 (4), S. 5723 - 5733 (2019)

Longinotti, A.L.; Kriss, G.; Krongold, Y.; Arellano-Cordova, K.Z.; Komossa, S.; Gallo, L.; Grupe, D.; Mathur, S.; Parker, M.L.; Pradhan, P.A. et al.; Wilkins, D.: The XMM-Newton/HST View of the Obscuring Outflow in the Seyfert Galaxy Mrk 335 Observed at Extremely Low X-Ray Flux. apj 875 (2), 150, S. 150 (2019)

Martín, S.; Muller, S.; Henkel, C.; Meier, D.S.; Aladro, R.; Sakamoto, K.; van der Werf, P.P.: Spatially resolved carbon and oxygen isotopic ratios in NGC 253 using optically thin tracers. aap 624, A125, S. A125 (2019)

Müller, B.; Tauris, T.M.; Heger, A.; Banerjee, P.; Qian, Y.-Z.; Powell, J.; Chan, C.; Gay, D.W.; Langer, N.: Three-dimensional simulations of neutrino-driven core-collapse supernovae from low-mass single and binary star progenitors. mnras 484 (3), S. 3307 - 3324 (2019)

Peißker, F.; Zajaček, M.; Eckart, A.; Sabha, N.B.; Shahzamanian, B.; Parsa, M.: New bow-shock source with bipolar morphology in the vicinity of Sgr A*. aap 624, A97, S. A97 (2019)

Pfalzner, S.; Bannister, M.T.: A Hypothesis for the Rapid Formation of Planets. apjl 874 (2), L34, S. L34 (2019)

Pierre Auger Collaboration; including Biermann, P.L.: Multi-Messenger Physics with the Pierre Auger Observatory. arXiv e-prints, arXiv:1904.11918, S. arXiv:1904.11918 (2019)

Seta, A.; Beck, R.: Revisiting the Equipartition Assumption in Star-Forming Galaxies. Galaxies 7 (2), S. 45 (2019)

Shao, L.; Bailey, Q.G.: Testing the gravitational weak equivalence principle in the standard model extension with binary pulsars. prd 99 (8), 084017, S. 084017 (2019)

Sobey, C.; Bilous, A.V.; Grießmeier, J.-M.; Hessels, J.W.T.; Karastergiou, A.; Keane, E.F.; Kondratiev, V.I.; Kramer, M.; Michilli, D.; Noutsos, A. et al.; Pilia, M.; Polzin, E.J.; Stappers, B.W.; Tan, C.M.; van Leeuwen, J.; Verbiest, J.P.W.; Weltevrede, P.; Heald, G.; Alves, M.I.R.; Carretti, E.; Enßlin, T.; Haverkorn, M.; Iacobelli, M.; Reich, W.; Van Eck, C.: Low-frequency Faraday rotation measures towards pulsars using LOFAR: probing the 3D Galactic halo magnetic field. mnras 484 (3), S. 3646 - 3664 (2019)

Urquhart, J.S.; Figura, C.; Wyrowski, F.; Giannetti, A.; Kim, W.-J.; Wienen, M.; Leurini, S.; Pillai, T.; Csengeri, T.; Gibson, S.J. et al.; Menten, K.M.; Moore, T.J.T.; Thompson, M.A.: ATLASGAL - molecular fingerprints of a sample of massive star-forming clumps. mnras 484 (4), S. 4444 - 4470 (2019)