Zobrazeno 1 - 10
of 347
pro vyhledávání: '"Green, J. D."'
Autor:
Szabó, Zs. M., Kóspál, Á., Ábrahám, P., Park, S., Siwak, M., Green, J. D., Pál, A., Acosta-Pulido, J. A., Lee, J. -E., Ibrahimov, M., Grankin, K., Kovács, B., Bora, Zs., Bódi, A., Cseh, B., Csörnyei, G., Drózdz, Marek, Hanyecz, O., Ignácz, B., Kalup, Cs., Könyves-Tóth, R., Krezinger, M., Kriskovics, L., Ogloza, Waldemar, Ordasi, A., Sárneczky, K., Seli, B., Szakáts, R., Szing, A., Vida, K., Vinkó, J.
Historically, FU Orionis-type stars are low-mass, pre-main sequence stars. The members of this class experience powerful accretion outbursts and remain in an enhanced accretion state for decades or centuries. V1515 Cyg, a classical FUor, started brig
Externí odkaz:
http://arxiv.org/abs/2206.12446
Autor:
Lisse, C. M., Sitko, M. L., Wolk, S. J., Günther, H. M., Brittain, S., Green, J. D., Steckloff, J., Johnson, B., Espaillat, C. C., Koutoukali, M., Moorman, S. Y., Jackson, A. P.
We present 2007 - 2020 SpeX VISNIR spectral monitoring of the highly variable RW Aur A CTTS. We find direct evidence for a highly excited, IR bright, asymmetric, and time variable system. Comparison of the spectral and temporal trends found determine
Externí odkaz:
http://arxiv.org/abs/2201.10465
Autor:
Kóspál, Á., de Miera, F. Cruz-Sáenz, White, J. A., Ábrahám, P., Chen, L., Csengeri, T., Dong, R., Dunham, M. M., Fehér, O., Green, J. D., Hashimoto, J., Henning, Th., Hogerheijde, M., Kudo, T., Liu, H. B., Takami, M., Vorobyov, E. I.
FU Orionis-type objects (FUors) are low-mass pre-main sequence stars undergoing a temporary, but significant increase of mass accretion rate from the circumstellar disk onto the protostar. It is not yet clear what triggers the accretion bursts and wh
Externí odkaz:
http://arxiv.org/abs/2106.14409
Autor:
Szabó, Zs. M., Kóspál, Á., Ábrahám, P., Park, S., Siwak, M., Green, J. D., Moór, A., Pál, A., Acosta-Pulido, J. A., Lee, J. -E., Cseh, B., Csörnyei, G., Hanyecz, O., Könyves-Tóth, R., Krezinger, M., Kriskovics, L., Ordasi, A., Sárneczky, K., Seli, B., Szakáts, R., Szing, A., Vida, K.
Publikováno v:
ApJ, 917, 80 (2021)
Among the low-mass pre-main sequence stars, a small group called FU Orionis-type objects (FUors) are notable for undergoing powerful accretion outbursts. V1057 Cyg, a classical example of an FUor, went into outburst around 1969-1970, after which it f
Externí odkaz:
http://arxiv.org/abs/2105.10405
FU Orionis-type stars are young stellar objects showing large outbursts due to highly enhanced accretion from the circumstellar disk onto the protostar. FUor-type outbursts happen in a wide variety of sources from the very embedded ones to those with
Externí odkaz:
http://arxiv.org/abs/2005.09364
Autor:
Yang, Y. -L., Evans II, N. J., Smith, A., Lee, J. -E., Tobin, J. J., Terebey, S., Calcutt, H., Jorgensen, J. K., Green, J. D., Bourke, T. L.
The collapse of the protostellar envelope results in the growth of the protostar and the development of a protoplanetary disk, playing a critical role during the early stages of star formation. Characterizing the gas infall in the envelope constrains
Externí odkaz:
http://arxiv.org/abs/2002.01478
Autor:
Mottram, J. C., van Dishoeck, E. F., Kristensen, L. E., Karska, A., José-García, I. San, Khanna, S., Herczeg, G. J., Andr, Ph., Bontemps, S., Cabrit, S., Carney, M. T., Drozdovskaya, M. N., Dunham, M. M., Evans, N. J., Fedele, D., Green, J. D., Harsono, D., Johnstone, D., Jørgensen, J. K., Könyves, V., Nisini, B., Persson, M. V., Tafalla, M., Visser, R., Yıldız, U. A.
[Abridged] We present spectroscopic observations in H$_{2}$O, CO and related species with \textit{Herschel} HIFI and PACS, as well as ground-based follow-up with the JCMT and APEX in CO, HCO$^{+}$ and isotopologues, of a sample of 49 nearby ($d<$500\
Externí odkaz:
http://arxiv.org/abs/1701.04647
Publikováno v:
Weed Technology, 2020 Jan 01. 34(1), 64-72.
Externí odkaz:
https://www.jstor.org/stable/26903095
Autor:
Manoj, P., Green, J. D., Megeath, S. T., Evans II, N. J., Stutz, A. M., Tobin, J. J., Watson, D. M., Fischer, W. J., Furlan, E., Henning, T.
We investigate the evolution of far-IR CO emission from protostars observed with Herschel/PACS for 50 sources from the combined sample of HOPS and DIGIT Herschel key programs. From the uniformly sampled spectral energy distributions, we computed $L_{
Externí odkaz:
http://arxiv.org/abs/1608.04965
Autor:
Britt, C. T., Maccarone, T. J., Green, J. D., Jonker, P. G., Hynes, R. I., Torres, M. A. P., Strader, J., Chomiuk, L., Salinas, R., Lucas, P., Pena, C. Contreras, Kurtev, R., Heinke, C., Smith, L., Wright, N. J., Johnson, C., Steeghs, D., Nelemans, G.
We report the detection of an infrared selected transient which has lasted at least 5 years, first identified by a large mid-infrared and optical outburst from a faint X-ray source detected with the Chandra X-ray Observatory. In this paper we rule ou
Externí odkaz:
http://arxiv.org/abs/1605.05321