Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Wegg, C"'
Autor:
Hilmi, T., Minchev, I., Buck, T., Martig, M., Quillen, A. C., Monari, G., Famaey, B., de Jong, R. S., Laporte, C. F. P., Read, J., Sanders, J. L., Steinmetz, M., Wegg, C.
We study the late-time evolution of the central regions of two Milky Way-like simulations of galaxies formed in a cosmological context, one hosting a fast bar and the other a slow one. We find that bar length, R_b, measurements fluctuate on a dynamic
Externí odkaz:
http://arxiv.org/abs/2003.05457
Publikováno v:
A&A 632, A121 (2019)
We use a sample of 938 red clump giant stars located in the direction of the galactic long bar to study the chemistry of Milky Way bar stars. Kinematically separating stars on bar orbits from stars with inner disc orbits, we find that stars on bar-li
Externí odkaz:
http://arxiv.org/abs/1909.11105
Publikováno v:
A&A 632, A107 (2019)
The second data release of the Gaia mission has revealed, in stellar velocity and action space, multiple ridges, the exact origin of which is still debated. Recently, we demonstrated that a large Galactic bar with pattern speed 39 km/s/kpc does creat
Externí odkaz:
http://arxiv.org/abs/1908.01318
Autor:
Hofmann, F., Wegg, C.
Recently an unidentified emission line at 3.55 keV has been detected in X-ray spectra of clusters of galaxies. The line has been discussed as a possible decay signature of 7.1 keV sterile neutrinos, which have been proposed as a dark matter (DM) cand
Externí odkaz:
http://arxiv.org/abs/1905.00916
Recent observations have discovered the presence of a Box/Peanut or X-shape structure in the Galactic bulge. Such Box/Peanut structures are common in external disc galaxies, and are well-known in N-body simulations where they form following the buckl
Externí odkaz:
http://arxiv.org/abs/1503.07203
We construct dynamical models of the Milky Way's Box/Peanut (B/P) bulge, using the recently measured 3D density of Red Clump Giants (RCGs) as well as kinematic data from the BRAVA survey. We match these data using the NMAGIC Made-to-Measure method, s
Externí odkaz:
http://arxiv.org/abs/1502.00633
Akademický článek
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Akademický článek
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Autor:
Hilmi, T, Minchev, I, Buck, T, Martig, M, Quillen, A C, Monari, G, Famaey, B, de Jong, R S, Laporte, C F P, Read, J, Sanders, J L, Steinmetz, M, Wegg, C
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Sep2020, Vol. 497 Issue 1, p933-955, 23p
Autor:
Famaey, B., Monari, G., Siebert, A., Bienaymé, O., Ibata, R., Wegg, C., Gerhard, O., Valluri, Monica, Sellwood, J. A.
Publikováno v:
Proceedings of the International Astronomical Union; Jun2020, Vol. 14 Issue s353, p61-64, 4p