Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Preibisch, Th."'
The optically invisible infrared-source NGC 2264 IRS 1 is thought to be a massive young stellar object (~10 Msun). Although strong infrared excess clearly shows that the central object is surrounded by large amounts of circumstellar material, no info
Externí odkaz:
http://arxiv.org/abs/1107.0928
Autor:
Forbrich, J., Preibisch, Th., Menten, K. M., Neuhäuser, R., Walter, F. M., Tamura, M., Matsunaga, N., Kusakabe, N., Nakajima, Y., Brandeker, A., Fornasier, S., Posselt, B., Tachihara, K., Broeg, C.
Publikováno v:
Astron.Astrophys.464:1003-1013,2007
Multi-wavelength (X-ray to radio) monitoring of Young Stellar Objects (YSOs) can provide important information about physical processes at the stellar surface, in the stellar corona, and/or in the inner circumstellar disk regions. While coronal proce
Externí odkaz:
http://arxiv.org/abs/astro-ph/0703316
Autor:
Kraus, S., Balega, Y. Y., Berger, J. -P., Hofmann, K. -H., Millan-Gabet, R., Monnier, J. D., Ohnaka, K., Pedretti, E., Preibisch, Th., Schertl, D., Schloerb, F. P., Traub, W. A., Weigelt, G.
Located in the Orion Trapezium cluster, Theta 1 Orionis C is one of the youngest and nearest high-mass stars (O5-O7) and also known to be a close binary system. Using new multi-epoch visual and near-infrared bispectrum speckle interferometric observa
Externí odkaz:
http://arxiv.org/abs/astro-ph/0702462
Autor:
Briggs, K. R., Guedel, M., Telleschi, A., Preibisch, Th., Stelzer, B., Bouvier, J., Rebull, L., Audard, M., Scelsi, L., Micela, G., Grosso, N., Palla, F.
The Taurus-Auriga star-forming complex hosts the only population of T Tauri stars in which an anticorrelation of X-ray activity and rotation period has been observed. We have used XMM-Newton's European Photon Imaging Cameras to perform the most sensi
Externí odkaz:
http://arxiv.org/abs/astro-ph/0701422
Autor:
Kraus, S., Balega, Y., Elitzur, M., Hofmann, K. -H., Preibisch, Th., Rosen, A., Schertl, D., Weigelt, G., Young, E. T.
NGC 7538 IRS1 is a high-mass (approx. 30 M_sun) protostar with a CO outflow, an associated UCHII region, and a linear methanol maser structure, which might trace a Keplerian-rotating circumstellar disk. The directions of the various associated axes a
Externí odkaz:
http://arxiv.org/abs/astro-ph/0604328
Autor:
Weigelt, G., Beuther, H., Hofmann, K. -H., Meyer, M. R., Preibisch, Th., Schertl, D., Smith, M. D., Young, E. T.
We present bispectrum speckle interferometry of the massive protostellar object IRAS 23151+5912 in the near-infrared K' band. The reconstructed image shows the diffuse nebulosity north-east of two point-like sources in unprecedented detail. The compa
Externí odkaz:
http://arxiv.org/abs/astro-ph/0511178
Autor:
de Souza, A. Domiciano, Driebe, T., Chesneau, O., Hofmann, K. -H., Kraus, S., Miroshnichenko, A. S., Ohnaka, K., Petrov, R. G., Preibisch, Th., Stee, P., Weigelt, G.
We present the first spectro-interferometric observations of the circumstellar envelope (CSE) of a B[e] supergiant (CPD -57 2874), performed with the Very Large Telescope Interferometer (VLTI) using the beam-combiner instruments AMBER (near-IR interf
Externí odkaz:
http://arxiv.org/abs/astro-ph/0510736
Autor:
de Souza, A. Domiciano, Driebe, T., Chesneau, O., Hofmann, K. -H., Kraus, S., Miroshnichenko, A. S., Ohnaka, K., Petrov, R. G., Preibisch, Th., Stee, P., Weigelt, G., Lisi, F., Malbet, F., Richichi, A.
We present the first high spatial and spectral observations of the circumstellar envelope (CSE) of a B[e] supergiant (CPD$-57 2874$), performed with the Very Large Telescope Interferometer (VLTI). Spectra, visibilities, and closure phase, were obtain
Externí odkaz:
http://arxiv.org/abs/astro-ph/0510735
Autor:
Ohnaka, Keiichi, Driebe, T., Hofmann, K. -H., Leinert, Ch., Morel, S., Paresce, F., Preibisch, Th., Richichi, A., Schertl, D., Schoeller, M., Waters, L. B. F. M., Weigelt, G., Wittkowski, M.
We present the results of N-band spectro-interferometric observations of the silicate carbon star IRAS08002-3803 with the MID-infrared Interferometric instrument (MIDI) at the Very Large Telescope Interferometer (VLTI) of the European Southern Observ
Externí odkaz:
http://arxiv.org/abs/astro-ph/0509746
Autor:
Stelzer, B., Flaccomio, E., Montmerle, T., Micela, G., Sciortino, S., Favata, F., Preibisch, Th., Feigelson, E. D.
The X-ray properties of twenty ~1 Myr old O, B, and A stars of the Orion Trapezium are examined with data from the Chandra Orion Ultradeep Project (COUP). On the basis of simple theories for X-ray emission, we define two classes separated at spectral
Externí odkaz:
http://arxiv.org/abs/astro-ph/0505503