Jeste, M.; Wiesemeyer, H.; Menten, K.-M.; Wyrowski, F.: [C I] and [C II] emission in the circumstellar envelope of IRC +10216. I. Observational data and NLTE modelling of the [C I] emission. \aap 675, A139, p. A139 (2023)

Jiang, H.-X.; Mizuno, Y.; Fromm, C. M.; Nathanail, A.: Two-temperature GRMHD simulations of black hole accretion flows with multiple magnetic loops. \mnras 522 (2), pp. 2307 - 2324 (2023)

Jin, J.-J.; Wu, X.-B.; Fu, Y.; Yao, S.; Ai, Y.-L.; Feng, X.-T.; He, Z.-Q.; Ma, Q.-C.; Pang, Y.-X.; Zhu, R. et al.; Zhang, Y.-x.; Yuan, H.-l.; Huo, Z.-Y.: The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey: Quasar Properties from Data Releases 6 to 9. \apjs 265 (1), 25, p. 25 (2023)

Johnson, M. D.; Akiyama, K.; Blackburn, L.; Bouman, K. L.; Broderick, A. E.; Cardoso, V.; Fender, R. P.; Fromm, C. M.; Galison, P.; Gómez, J. L. et al.; Haggard, D.; Lister, M. L.; Lobanov, A. P.; Markoff, S.; Narayan, R.; Natarajan, P.; Nichols, T.; Pesce, D. W.; Younsi, Z.; Chael, A.; Chatterjee, K.; Chaves, R.; Doboszewski, J.; Dodson, R.; Doeleman, S. S.; Elder, J.; Fitzpatrick, G.; Haworth, K.; Houston, J.; Issaoun, S.; Kovalev, Y. Y.; Levis, A.; Lico, R.; Marcoci, A.; Martens, N. C.~.; Nagar, N. M.; Oppenheimer, A.; Palumbo, D. C.~.; Ricarte, A.; Rioja, M. J.; Roelofs, F.; Thresher, A. C.; Tiede, P.; Weintroub, J.; Wielgus, M.: Key Science Goals for the Next-Generation Event Horizon Telescope. Galaxies 11 (3), p. 61 (2023)

Johnston, S.; Kramer, M.; Karastergiou, A.; Keith, M.-J.; Oswald, L.-S.; Parthasarathy, A.; Weltevrede, P.: The Thousand-Pulsar-Array programme on MeerKAT - XI. Application of the rotating vector model. \mnras 520 (4), pp. 4801 - 4814 (2023)

Jorstad, S.; Wielgus, M.; Lico, R.; and 266 more , i.; Wielgus, M.; Krichbaum, T.P.; Janssen, M.; Kim, J.-Y.; Lu, R.-S.; Pötzl, F.M. et al.; Traianou, E.; Alef, W.; Azulay, R.; Bach, U.; Baczko, A.-K.; Britzen, S.; Desvignes, G.; Dzib, S.A.; Eatough, R.P.; Fromm, C.M.; Karuppusamy, R.; Kim, D.-J.; Kramer, M.; Lisakov, M.; Liu, K.; Lobanov, A.P.; MacDonald, N.R.; Menten, K.M.; Müller, C.; Noutsos, A.; Ortiz-Leon, G.N.; Paraschos, G.F.; Ros, E.; Rottmann, H.; Roy, A.L.; Savolainen, T.; Shao, L.; Torne, P.; Wagner, J.; Wex, N.; Wharton, R.; Witzel, G.; Zensus, J.A.: The Event Horizon Telescope Image of the Quasar NRAO 530. \apj 943 (2), 170, p. 170 (2023)

Kahle, K. A.; Hernández-Gómez, A.; Wyrowski, F.; Menten, K. M.: The molecular environment of the solar-type protostar IRAS 16293-2422. \aap 673, A143, p. A143 (2023)

Kara, E.; Barth, A. J.; Cackett, E. M.; Gelbord, J.; Montano, J.; Li, Y.-R.; Santana, L.; Horne, K.; Alston, W. N.; Buisson, D. et al.; Chelouche, D.; Du, P.; Fabian, A. C.; Fian, C.; Gallo, L.; Goad, M. R.; Grupe, D.; González Buitrago, D. H.; Hernández Santisteban, J. V.; Kaspi, S.; Hu, C.; Komossa, S.; Kriss, G. A.; Lewin, C.; Lewis, T.; Loewenstein, M.; Lohfink, A.; Masterson, M.; McHardy, I. M.; Mehdipour, M.; Miller, J.; Panagiotou, C.; Parker, M. L.; Pinto, C.; Remillard, R.; Reynolds, C.; Rogantini, D.; Wang, J.-M.; Wang, J.; Wilkins, D.: UV-Optical Disk Reverberation Lags despite a Faint X-Ray Corona in the Active Galactic Nucleus Mrk 335. \apj 947 (2), 62, p. 62 (2023)

Karim, R. L.; Pound, M. W.; Tielens, A. G.G.M.; Tiwari, M.; Bonne, L.; Wolfire, M. G.; Schneider, N.; Kavak, ü.; Mundy, L. G.; Simon, R. et al.; Güsten, R.; Stutzki, J.; Wyrowski, F.; Honingh, N.: SOFIA FEEDBACK Survey: The Pillars of Creation in [C II] and Molecular Lines. \aj 166 (6), 240, p. 240 (2023)

Kim, D.-W.; Janssen, M.; Krichbaum, T. P.; Boccardi, B.; MacDonald, N. R.; Ros, E.; Lobanov, A. P.; Zensus, J. A.: First GMVA observations with the upgraded NOEMA facility: VLBI imaging of BL Lacertae in a flaring state. \aap 680, L3, p. L3 (2023)

Kim, W. -.; Schilke, P.; Neufeld, D.-A.; Jacob, A.-M.; Sánchez-Monge, á.; Seifried, D.; Godard, B.; Menten, K.-M.; Walch, S.; Falgarone, E. et al.; Veena, V.-S.; Bialy, S.; Möller, T.; Wyrowski, F.: HyGAL: Characterizing the Galactic ISM with observations of hydrides and other small molecules. II. The absorption line survey with the IRAM 30 m telescope. \aap 670, A111, p. A111 (2023)

Kim, W. -.; Urquhart, J.-S.; Veena, V.-S.; Fuller, G.-A.; Schilke, P.; Kim, K. -.: A survey of SiO J = 1-0 emission toward massive star-forming regions. \aap 679, A123, p. A123 (2023)

Kleiner, D.; Serra, P.; Maccagni, F.-M.; Raj, M.-A.; de Blok, W.J.G.; Józsa, G.I.G.; Kamphuis, P.; Kraan-Korteweg, R.; Loi, F.; Loni, A. et al.; Loubser, S.-I.; Molnár, D. C.; Oosterloo, T.-A.; Peletier, R.; Pisano, D.-J.: The MeerKAT Fornax Survey. II. The rapid removal of H I from dwarf galaxies in the Fornax cluster. \aap 675, A108, p. A108 (2023)

Kodaira, K.; Kalinova, V.: Formation of the Stellar System and the Central Gravitation-Potential Vessel of Galaxies. IAU Symposium 373, pp. 128 - 131 (2023)

Kollatschny, W.; Grupe, D.; Parker, M.-L.; Ochmann, M.-W.; Schartel, N.; Romero-Colmenero, E.; Winkler, H.; Komossa, S.; Famula, P.; Probst, M.-A. et al.; Santos-Lleo, M.: The outburst of the changing-look AGN IRAS 23226-3843 in 2019. \aap 670, A103, p. A103 (2023)

Komossa, S.; Grupe, D.: Extreme accretion events: TDEs and changing-look AGN. Astronomische Nachrichten 344 (4), easna.20230015, p. easna.20230015 (2023)

Komossa, S.; Grupe, D.; Kraus, A.; MOMO Team: The blazar OJ 287 in a long-lasting low-state with small-amplitude rapid flares superposed. The Astronomer's Telegram 16071, p. 1 (2023)

Komossa, S.; Grupe, D.; Kraus, A.; Gurwell, M.-A.; Haiman, Z.; Liu, F.-K.; Tchekhovskoy, A.; Gallo, L.-C.; Berton, M.; Blandford, R. et al.; Gómez, J.-L.; Gonzalez, A.-G.: Absence of the predicted 2022 October outburst of OJ 287 and implications for binary SMBH scenarios. \mnras 522 (1), pp. L84 - L88 (2023)

Komossa, S.; Kraus, A.; Grupe, D.; Gonzalez, A.-G.; Gurwell, M.-A.; Gallo, L.-C.; Liu, F.-K.; Myserlis, I.; Krichbaum, T.-P.; Laine, S. et al.; Bach, U.; Gómez, J.-L.; Parker, M.-L.; Yao, S.; Berton, M.: MOMO. VI. Multifrequency Radio Variability of the Blazar OJ 287 from 2015 to 2022, Absence of Predicted 2021 Pecursor-flare Activity, and a New Binary Interpretation of the 2016/2017 Outburst. \apj 944 (2), 177, p. 177 (2023)

Komossa, S.; Kraus, A.; Grupe, D.; Parker, M.-L.; Gonzalez, A.; Gallo, L.-C.; Gurwell, M.-A.; Laine, S.; Yao, S.; Chandra, S. et al.; Dey, L.; Gómez, J.-L.; Hada, K.; Haggard, D.; Hollett, A.-R.; Jermak, H.; Jorstad, S.; Krichbaum, T.-P.; Markoff, S.; McCall, C.; Neilsen, J.; Nowak, M.: Multiwavelength astrophysics of the blazar OJ 287 and the project MOMO. Astronomische Nachrichten 344 (4), easna.20220126, p. easna.20220126 (2023)