Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Kuffmeier, M."'
Autor:
Kuffmeier, M.
The formation of protostars and their disks has been understood as the result of the gravitational collapse phase of an accumulation of dense gas that determines the mass reservoir of the star-disk system. Against this background, the broadly applied
Externí odkaz:
http://arxiv.org/abs/2406.10901
It has been consensus that star-disk systems accrete most of their mass and angular momentum during the collapse of a prestellar core, such that the rotational direction of a system is equivalent to the net rotation of the core. Recent results, howev
Externí odkaz:
http://arxiv.org/abs/2405.12670
Publikováno v:
A&A 686, A111 (2024)
Observations performed with high-resolution imaging techniques revealed the existence of shadows in circumstellar disks that can be explained by the misalignment of an inner with respect to an outer disk. The cause of misalignment, however, is still
Externí odkaz:
http://arxiv.org/abs/2403.08388
Autor:
Cacciapuoti, L., Macias, E., Gupta, A., Testi, L., Miotello, A., Espaillat, C., Kuffmeier, M., van Terwisga, S., Tobin, J., Grant, S., Manara, C. F., Segura-Cox, D., Wendeborn, J., Klessen, R. S., Maury, A. J., Lebreuilly, U., Hennebelle, P., Molinari, S.
Observations of interstellar material infalling onto star- and planet-forming systems have become increasingly common thanks to recent advancements in radio interferometry. These structures replenish disks with fresh material, have the potential to s
Externí odkaz:
http://arxiv.org/abs/2311.13723
MHD models and the observation of accretion streamers confirmed that protostars can undergo late accretion events after the initial collapse phase. To provide better constraints, we study the evolution of stellar masses in MHD simulations of a (4 pc)
Externí odkaz:
http://arxiv.org/abs/2303.05261
Publikováno v:
A&A 656, A161 (2021)
Arc- and tail-like structures associated with disks around Herbig stars can be a consequence of infall events occurring after the initial collapse phase of a forming star. An encounter event of gas with a star can lead to the formation of a second-ge
Externí odkaz:
http://arxiv.org/abs/2110.04309
Publikováno v:
A&A 639, A137 (2020)
Measuring polarization from thermal dust emission can provide constraints on the magnetic field structure around embedded protostars. However, interpreting the observations is challenging without models that consistently account for both the complexi
Externí odkaz:
http://arxiv.org/abs/2006.01297
Publikováno v:
A&A 639, A86 (2020)
Surveys of protoplanetary disks in star-forming regions of similar age revealed significant variations in average disk mass between some regions. For instance, disks in the Orion Nebular Cluster (ONC) and Corona Australis (CrA) are on average smaller
Externí odkaz:
http://arxiv.org/abs/2006.00019
Publikováno v:
A&A 633, A3 (2020)
Both observations of arc-like structures and luminosity bursts of stars > 1 Myr in age indicate that at least some stars undergo late infall events. We investigate scenarios of replenishing the mass reservoir around a star via capturing and infalling
Externí odkaz:
http://arxiv.org/abs/1911.04833
Autor:
Tsapras, Y., Cassan, A., Ranc, C., Bachelet, E., Street, R., Udalski, A., Hundertmark, M., Bozza, V., Beaulieu, J. P., Marquette, J. B., Euteneuer, E., team, The RoboNet, Bramich, D. M., Dominik, M., Jaimes, R. Figuera, Horne, K., Mao, S., Menzies, J., Schmidt, R., Snodgrass, C., Steele, I. A., Wambsganss, J., collaboration, The OGLE, Mróz, P., Szymański, M. K., Soszyński, I., Skowron, J., Pietrukowicz, P., Kozłowski, S., Poleski, R., Ulaczyk, K., Pawlak, M., collaboration, The MiNDSTEp, Jørgensen, U. G., Skottfelt, J., Popovas, A., Ciceri, S., Korhonen, H., Kuffmeier, M., Evans, D. F., Peixinho, N., Hinse, T. C., Burgdorf, M. J., Southworth, J., Tronsgaard, R., Kerins, E., Andersen, M. I., Rahvar, S., Wang, Y., Wertz, O., Rabus, M., Novati, S. Calchi, D'Ago, G., Scarpetta, G., Mancini, L., collaboration, The MOA, Abe, F., Asakura, Y., Bennett, D. P., Bhattacharya, A., Donachie, M., Evans, P., Fukui, A., Hirao, Y., Itow, Y., Kawasaki, K., Koshimoto, N., Li, M. C. A., Ling, C. H., Masuda, K., Matsubara, Y., Muraki, Y., Miyazaki, S., Nagakane, M., Ohnishi, K., Rattenbury, N., Saito, To., Sharan, A., Shibai, H., Sullivan, D. J., Sumi, T., Suzuki, D., Tristram, P. J., Yamada, T., Yonehara, A.
We present the analysis of stellar binary microlensing event OGLE-2015-BLG-0060 based on observations obtained from 13 different telescopes. Intensive coverage of the anomalous parts of the light curve was achieved by automated follow-up observations
Externí odkaz:
http://arxiv.org/abs/1906.02630