Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Bergfors, C."'
Autor:
Rodet, L., Bonnefoy, M., Durkan, S., Beust, H., Lagrange, A-M, Schlieder, J. E., Janson, M., Grandjean, A., Chauvin, G., Messina, S., Maire, A. -L., Brandner, W., Girard, J., Delorme, P., Biller, B., Bergfors, C., Lacour, S., Feldt, M., Henning, T., Boccaletti, A., Bouquin, J. -B. Le, Berger, J. -P., Monin, J. -L., Udry, S., Peretti, S., Segransan, D., Allard, F., Homeier, D., Vigan, A., Langlois, M., Hagelberg, J., Menard, F., Bazzon, A., Beuzit, J. -L., Delboulbe, A., Desidera, S., Gratton, R., Lannier, J., Ligi, R., Maurel, D., Mesa, D., Meyer, M., Pavlov, A., Ramos, J., Rigal, R., Roelfsema, R., Salter, G., Samland, M., Schmidt, T., Stadler, E., Weber, L.
Publikováno v:
A&A 618, A23 (2018)
Evolutionary models are widely used to infer the mass of stars, brown dwarfs, and giant planets. Their predictions are thought to be less reliable at young ages ($<$ 200 Myr) and in the low-mass regime ($\mathrm{<1~M_{\odot}}$). GJ 2060 AB and TWA 22
Externí odkaz:
http://arxiv.org/abs/1806.05491
Autor:
Bergfors, C., Brandner, W., Bonnefoy, M., Schlieder, J., Janson, M., Henning, Th., Chauvin, G.
We present VLT/SINFONI J, H+K spectra of seven close visual pairs in M dwarf binary/triple systems, discovered or observed by the AstraLux M dwarf survey. We determine the spectral types to within 1.0 subclasses from comparison to template spectra an
Externí odkaz:
http://arxiv.org/abs/1511.09119
White dwarfs whose atmospheres are polluted by terrestrial-like planetary debris have become a powerful and unique tool to study evolved planetary systems. This paper presents results for an unbiased Spitzer IRAC search for circumstellar dust orbitin
Externí odkaz:
http://arxiv.org/abs/1410.6527
Autor:
Schlieder, J. E., Bonnefoy, M., Herbst, T. M., Lepine, S., Berger, E., Henning, Th., Skemer, A., Chauvin, G., Rice, E., Biller, B., Girard, J. H. V., Lagrange, A. M., Hinz, P., Defrere, D., Bergfors, C., Brandner, W., Lacour, S., Skrutskie, M., Leisenring, J.
We report the confirmation of the binary nature of the nearby, very low-mass system NLTT 33370 with adaptive optics imaging and present resolved near-infrared photometry and integrated light optical and near-infrared spectroscopy to characterize the
Externí odkaz:
http://arxiv.org/abs/1401.0947
HR8799 is so far the only directly imaged multiple exoplanet system. The orbital configuration would, if better known, provide valuable insight into the formation and dynamical evolution of wide-orbit planetary systems. We present L'-band observation
Externí odkaz:
http://arxiv.org/abs/1102.5330
Autor:
Bergfors, C., Brandner, W., Janson, M., Daemgen, S., Geissler, K., Henning, T., Hippler, S., Hormuth, F., Joergens, V., Köhler, R.
While M dwarfs are the most abundant stars in the Milky Way, there is still large uncertainty about their basic physical properties (mass, luminosity, radius, etc.) as well as their formation environment. Precise knowledge of multiplicity characteris
Externí odkaz:
http://arxiv.org/abs/1006.2377
HR 8799 is a multi-planet system detected in direct imaging, with three companions known so far. Here, we present spatially resolved VLT/NACO 3.88--4.10 micron spectroscopy of the middle planet, HR 8799 c, which has an estimated mass of ~10 Mjup, tem
Externí odkaz:
http://arxiv.org/abs/1001.2017
Straight-forward derivation of planetary parameters can only be achieved in transiting planetary systems. However, planetary attributes such as radius and mass strongly depend on stellar host parameters. Discovering a transit host star to be multiple
Externí odkaz:
http://arxiv.org/abs/0902.2179
Autor:
Rodet, L., Bonnefoy, M., Durkan, S., Beust, H., Lagrange, A-M, Schlieder, J., Janson, M., Grandjean, A., Chauvin, G., Messina, S., Maire, A-L, Brandner, W., Girard, J., Delorme, P., Biller, B., Bergfors, C., Lacour, S., Feldt, M., Henning, T., Boccaletti, A., Le Bouquin, J-B, Berger, J-P, Monin, J-L, Udry, S., Peretti, S., Segransan, D., Allard, F., Homeier, D., Vigan, Arthur, Langlois, M., Hagelberg, J., Menard, F., Bazzon, A., Beuzit, J-L, Delboulbe, A., Desidera, S., Gratton, R., Lannier, J., Ligi, R., Maurel, D., Mesa, D., Meyer, M., Pavlov, A., Ramos, J., Rigal, R., Roelfsema, R., Salter, G., Samland, M., Schmidt, T., Stadler, E., Weber, L.
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2018, 618, pp.A23. ⟨10.1051/0004-6361/201832924⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2018, 618, pp.A23. ⟨10.1051/0004-6361/201832924⟩
Astronomy and Astrophysics-A&A, 2018, 618, pp.A23. ⟨10.1051/0004-6361/201832924⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2018, 618, pp.A23. ⟨10.1051/0004-6361/201832924⟩
International audience; Context. Evolutionary models are widely used to infer the mass of stars, brown dwarfs, and giant planets. Their predictions are thought to be less reliable at young ages (< 200 Myr) and in the low-mass regime (< 1 M⊙). GJ 20
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::9e061de930636a0fbeadf30393c2a9c6
https://hal.sorbonne-universite.fr/hal-01900590
https://hal.sorbonne-universite.fr/hal-01900590