Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Guenther, H. M."'
Autor:
Binks, A. S., Guenther, H. M.
We present a software package designed to produce photometric lightcurves and measure rotation periods from full-frame images taken by the Transiting Exoplanet Survey Satellite (TESS), which we name ``TESSILATOR''. TESSILATOR is the only publicly-ava
Externí odkaz:
http://arxiv.org/abs/2407.18761
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:
Arulanantham, Nicole, France, Kevin, Hoadley, Keri, Schneider, P. C., Espaillat, Catherine C., Günther, H. M., Herczeg, Gregory J., Brown, Alexander
Ultraviolet spectra of protoplanetary disks trace distributions of warm gas at radii where rocky planets form. We combine HST-COS observations of H2 and CO emission from 12 classical T Tauri stars to more extensively map inner disk surface layers, wh
Externí odkaz:
http://arxiv.org/abs/2107.10284
Autor:
Manara, C. F., Frasca, A., Venuti, L., Siwak, M., Herczeg, G. J., Calvet, N., Hernandez, J., Tychoniec, Ł., Gangi, M., Alcalá, J. M., Boffin, H. M. J., Nisini, B., Robberto, M., Briceno, C., Campbell-White, J., Sicilia-Aguilar, A., McGinnis, P., Fedele, D., Kóspál, Á., Ábrahám, P., Alonso-Santiago, J., Antoniucci, S., Arulanantham, N., Bacciotti, F., Banzatti, A., Beccari, G., Benisty, M., Biazzo, K., Bouvier, J., Cabrit, S., Garatti, A. Caratti o, Coffey, D., Covino, E., Dougados, C., Eislöffel, J., Ercolano, B., Espaillat, C. C., Erkal, J., Facchini, S., Fang, M., Fiorellino, E., Fischer, W. J., France, K., Gameiro, J. F., Lopez, R. Garcia, Giannini, T., Ginski, C., Grankin, K., Günther, H. M., Hartmann, L., Hillenbrand, L. A., Hussain, G. A. J., James, M. M., Koutoulaki, M., Lodato, G., Maucó, K., Mendigutía, I., Mentel, R., Miotello, A., Oudmaijer, R. D., Rigliaco, E., Rosotti, G. P., Sanchis, E., Schneider, P. C., Spina, L., Stelzer, B., Testi, L., Thanathibodee, T., Vink, J. S., Walter, F. M., Williams, J. P., Zsidi, G.
Publikováno v:
A&A 650, A196 (2021)
The evolution of young stars and disks is driven by the interplay of several processes, notably accretion and ejection of material. Critical to correctly describe the conditions of planet formation, these processes are best probed spectroscopically.
Externí odkaz:
http://arxiv.org/abs/2103.12446
Autor:
Schneider, P. C., Dougados, C., Whelan, E. T., Eislöffel, J., Günther, H. M., Huélamo, N., Mendigutía, I., Oudmaijer, R. D., Beck, Tracy L.
Young accreting stars drive outflows that collimate into jets, which can be seen hundreds of au from their driving sources. Accretion and outflow activity cease with system age, and it is believed that magneto-centrifugally launched disk winds are cr
Externí odkaz:
http://arxiv.org/abs/2006.00573
The formation of low-mass stars in molecular clouds involves accretion disks and jets, which are of broad astrophysical interest. Accreting stars represent the closest examples of these phenomena. Star and planet formation are also intimately connect
Externí odkaz:
http://arxiv.org/abs/2005.10031
Autor:
Arulanantham, Nicole, France, K., Cazzoletti, P., Miotello, A., Manara, C. F., Schneider, P. C., Hoadley, K., van Dishoeck, E. F., Günther, H. M.
The UV radiation field is a critical regulator of gas-phase chemistry in surface layers of disks around young stars. In an effort to understand the relationship between photocatalyzing UV radiation fields and gas emission observed at infrared and sub
Externí odkaz:
http://arxiv.org/abs/2002.09058
Autor:
Alcala', J. M., Manara, C. F., France, K., Schneider, C. P., Arulanantham, N., Miotello, A., Guenther, H. M., Brown, A.
Publikováno v:
A&A 629, A108 (2019)
The mass accretion rate is a crucial parameter for the study of the evolution of accretion discs around young low-mass stellar and substellar objects (YSOs). We revisit the case of MYLup, an object where VLT/X-Shooter data suggested a negligible mass
Externí odkaz:
http://arxiv.org/abs/1908.10647
Autor:
Siemiginowska, A., Eadie, G., Czekala, I., Feigelson, E., Ford, E. B., Kashyap, V., Kuhn, M., Loredo, T., Ntampaka, M., Stevens, A., Avelino, A., Borne, K., Budavari, T., Burkhart, B., Cisewski-Kehe, J., Civano, F., Chilingarian, I., van Dyk, D. A., Fabbiano, G., Finkbeiner, D. P., Foreman-Mackey, D., Freeman, P., Fruscione, A., Goodman, A. A., Graham, M., Guenther, H. M., Hakkila, J., Hernquist, L., Huppenkothen, D., James, D. J., Law, C., Lazio, J., Lee, T., López-Morales, M., Mahabal, A. A., Mandel, K., Meng, X. L., Moustakas, J., Muna, D., Peek, J. E. G., Richards, G., Portillo, S. K. N., Scargle, J., de Souza, R. S., Speagle, J. S., Stassun, K. G., Stenning, D. C., Taylor, S. R., Tremblay, G. R., Trimble, V., Yanamandra-Fisher, P. A., Young, C. A.
Over the past century, major advances in astronomy and astrophysics have been largely driven by improvements in instrumentation and data collection. With the amassing of high quality data from new telescopes, and especially with the advent of deep an
Externí odkaz:
http://arxiv.org/abs/1903.06796
Publikováno v:
A&A 618, A55 (2018)
Classical T Tauri stars (CTTSs) accrete matter from the inner edge of their surrounding circumstellar disks. The impact of the accretion material on the stellar atmosphere results in a strong shock, which causes emission from the X-ray to the near-in
Externí odkaz:
http://arxiv.org/abs/1806.06788