Marcote, B.; Nimmo, K.; Salafia, O.S.; Paragi, Z.; Hessels, J.W.T.; Petroff, E.; Karuppusamy, R.: Resolving the Decades-long Transient FIRST J141918.9+394036: An Orphan Long Gamma-Ray Burst or a Young Magnetar Nebula? apjl 876 (1), L14, p. L14 (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, p. A125 (2019)

Martin-Drumel, M.-A.; Lee, K.L.K.; Belloche, A.; Zingsheim, O.; Thorwirth, S.; Müller, H.S.P.; Lewen, F.; Garrod, R.T.; Menten, K.M.; McCarthy, M.C. et al.; Schlemmer, S.: Submillimeter spectroscopy and astronomical searches of vinyl mercaptan, C2H3SH. aap 623, A167, p. A167 (2019)

Martinez, J.G.; Gentile, P.; Freire, P.C.C.; Stovall, K.; Deneva, J.S.; Desvignes, G.; Jenet, F.A.; McLaughlin, M.A.; Bagchi, M.; Devine, T.: The Discovery of Six Recycled Pulsars from the Arecibo 327 MHz Drift-Scan Pulsar Survey. apj 881 (2), 166, p. 166 (2019)

Massi, F.; Weiss, A.; Elia, D.; Csengeri, T.; Schisano, E.; Giannini, T.; Hill, T.; Lorenzetti, D.; Menten, K.; Olmi, L. et al.; Schuller, F.; Strafella, F.; De Luca, M.; Motte, F.; Wyrowski, F.: Dense cores and star formation in the giant molecular cloud Vela C★★★. aap 628, A110, p. A110 (2019)

Matter, A.; Labadie, L.; Kreplin, A.; Lopez, B.; Wolf, S.; Weigelt, G.; Ertel, S.; Pott, J.-U.; Danchi, W.C.: Evidence of a discontinuous disk structure around the Herbig Ae star HD 139614 (Corrigendum). aap 632, C2, p. C2 (2019)

Matthews, L.D.; Claussen, M.J.; Harper, G.M.; Menten, K.M.; Ridgway, S.: Unlocking the Secrets of Late-Stage Stellar Evolution and Mass Loss through Radio Wavelength Imaging. baas 51 (3), 424, p. 424 (2019)

Maury, A.J.; André, P.; Testi, L.; Maret, S.; Belloche, A.; Hennebelle, P.; Cabrit, S.; Codella, C.; Gueth, F.; Podio, L. et al.; Anderl, S.; Bacmann, A.; Bontemps, S.; Gaudel, M.; Ladjelate, B.; Lefèvre, C.; Tabone, B.; Lefloch, B.: Characterizing young protostellar disks with the CALYPSO IRAM-PdBI survey: large Class 0 disks are rare. aap 621, A76, p. A76 (2019)

McKee, J.W.; Stappers, B.W.; Bassa, C.G.; Chen, S.; Cognard, I.; Gaikwad, M.; Janssen, G.H.; Karuppusamy, R.; Kramer, M.; Lee, K.J. et al.; Liu, K.; Perrodin, D.; Sanidas, S.A.; Smits, R.; Wang, L.; Zhu, W.W.: A detailed study of giant pulses from PSR B1937+21 using the Large European Array for Pulsars. mnras 483 (4), pp. 4784 - 4802 (2019)

Medina, S.-N.X.; Urquhart, J.S.; Dzib, S.A.; Brunthaler, A.; Cotton, B.; Menten, K.M.; Wyrowski, F.; Beuther, H.; Billington, S.J.; Carrasco-Gonzalez, C. et al.; Csengeri, T.; Gong, Y.; Hofner, P.; Nguyen, H.; Ortiz-León, G.N.; Ott, J.; Pandian, J.D.; Roy, N.; Sarkar, E.; Wang, Y.; Winkel, B.: GLOSTAR: Radio Source Catalog I. 28° < l < 36° and |b| < 1°. aap 627, A175, p. A175 (2019)

Mehner, A.; de Wit, W.-J.; Asmus, D.; Morris, P.W.; Agliozzo, C.; Barlow, M.J.; Gull, T.R.; Hillier, D.J.; Weigelt, G.: Mid-infrared evolution of η Carinae from 1968 to 2018. aap 630, L6, p. L6 (2019)

Miao, X.; Shao, L.; Ma, B.-Q.: Bounding the mass of graviton in a dynamic regime with binary pulsars. prd 99 (12), 123015, p. 123015 (2019)

Miskolczi, A.; Heesen, V.; Horellou, C.; Bomans, D.-J.; Beck, R.; Heald, G.; Dettmar, R.-J.; Blex, S.; Nikiel-Wroczyński, B.; Chyzy, K.T. et al.; Stein, Y.; Irwin, J.A.; Shimwell, T.W.; Wang, Q.D.: CHANG-ES XII. A LOFAR and VLA view of the edge-on star-forming galaxy NGC 3556. aap 622, A9, p. A9 (2019)

Monnier, J.; Rau, G.; Baines, E.K.; Sanchez-Bermudez, J.; Elvis, M.; Ragland, S.; Akeson, R.; van Belle, G.; Norris, R.; Gordon, K. et al.; Defrère, D.; Ridgway, S.; Le Bouquin, J.-B.; Anugu, N.; Scott, N.; Kane, S.; Richardson, N.; Regaly, Z.; Zhu, Z.; Chiavassa, A.; Vasisht, G.; Stassun, K.G.; Dong, C.; Absil, O.; Lacour, S.; Weigelt, G.; Gies, D.; Adams, F.C.; Calvet, N.; Quanz, S.P.; Espaillat, C.; Gardner, T.; Greenbaum, A.; Millan-Gabet, R.; Packham, C.; Gai, M.; Kral, Q.; Berger, J.-P.; Linz, H.; Klarmann, L.; Bae, J.; Lopez Garcia, R.; Alexandre, G.; Baron, F.; Hartmann, L.; Kishimoto, M.; McClure, M.; Olofsson, J.; Haniff, C.; Line, M.; Petrov, R.G.; Smith, M.; Hummel, C.; ten Brummelaar, T.; De Furio, M.; Rinehart, S.; Leisawitz, D.; Danchi, W.; Huber, D.; Wishnow, E.; Mourard, D.; Pope, B.; Ireland, M.; Kraus, S.; Setterholm, B.; White, R.: The Future of Exoplanet Direct Detection. baas 51 (3), 514, p. 514 (2019)

Monnier, J.; Rau, G.; Bermudez, J.S.; Ragland, S.; Akeson, R.; Duchene, G.; van Belle, G.; Norris, R.; Gordon, K.; Defrère, D. et al.; Kluska, J.; Ridgway, S.; Le Bouquin, J.-B.; Anugu, N.; Scott, N.; Kane, S.; Richardson, N.D.; Regaly, Z.; Zhu, Z.; Vasisht, G.; Stassun, K.G.; Andrews, S.; Lacour, S.; Weigelt, G.; Turner, N.; Adams, F.C.; Gies, D.; Calvet, N.; Espaillat, C.; Millan-Gabet, R.; Gardner, T.; Packham, C.; Gai, M.; Kral, Q.; Berger, J.-P.; Linz, H.; Klarmann, L.; Bate, M.; Bae, J.; Lopez, R.G.; Garufi, A.; Baron, F.; Kama, M.; Wilner, D.; Hartmann, L.; Kishimoto, M.; Olofsson, J.; McClure, M.; Haniff, C.; Hoenig, S.; Line, M.; Petrov, R.G.; Smith, M.; ten Brummelaar, T.; De Furio, M.; Koutoulaki, M.; Rinehart, S.; Leisawitz, D.; Danchi, W.; Huber, D.; Zhang, K.; Pope, B.; Ireland, M.; Kraus, S.; Isella, A.; Setterholm, B.; White, R.: Imaging the Key Stages of Planet Formation. baas 51 (3), 498, p. 498 (2019)

Mookerjea, B.; Sandell, G.; Güsten, R.; Riquelme, D.; Wiesemeyer, H.; Chambers, E.: Opening the Treasure Chest in Carina. aap 626, A131, p. A131 (2019)

Mora-Partiarroyo, S.C.; Krause, M.; Basu, A.; Beck, R.; Wiegert, T.; Irwin, J.; Henriksen, R.; Stein, Y.; Vargas, C.J.; Heesen, V. et al.; Walterbos, R.A.M.; Rand, R.J.; Heald, G.; Li, J.; Kamieneski, P.; English, J.: CHANG-ES. XIV. Cosmic-ray propagation and magnetic field strengths in the radio halo of NGC 4631. aap 632, A10, p. A10 (2019)

Mora-Partiarroyo, S.C.; Krause, M.; Basu, A.; Beck, R.; Wiegert, T.; Irwin, J.; Henriksen, R.; Stein, Y.; Vargas, C.J.; Heesen, V. et al.; Walterbos, R.A.M.; Rand, R.J.; Heald, G.; Li, J.; Kamieneski, P.; English, J.: CHANG-ES. XV. Large-scale magnetic field reversals in the radio halo of NGC 4631. aap 632, A11, p. A11 (2019)

Morello, V.; Barr, E.D.; Cooper, S.; Bailes, M.; Bates, S.; Bhat, N.D.R.; Burgay, M.; Burke-Spolaor, S.; Cameron, A.D.; Champion, D.J. et al.; Eatough, R.P.; Flynn, C.M.L.; Jameson, A.; Johnston, S.; Keith, M.J.; Keane, E.F.; Kramer, M.; Levin, L.; Ng, C.; Petroff, E.; Possenti, A.; Stappers, B.W.; van Straten, W.; Tiburzi, C.: The High Time Resolution Universe survey - XIV. Discovery of 23 pulsars through GPU-accelerated reprocessing. mnras 483 (3), pp. 3673 - 3685 (2019)

Moscadelli, L.; Sanna, A.; Cesaroni, R.; Rivilla, V.M.; Goddi, C.; Rygl, K.L.J.: A 10-M☉ YSO with a Keplerian disk and a nonthermal radio jet. aap 622, A206, p. A206 (2019)