Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Gizis, J."'
Autor:
Bonito, R., Venuti, L., Ustamujic, S., Yoachim, P., Street, R. A., Prisinzano, L., Hartigan, P., Guarcello, M. G., Stassun, K. G., Giannini, T., Feigelson, E. D., Garatti, A. Caratti o, Orlando, S., Clarkson, W. I., McGehee, P., Bellm, E. C., Gizis, J. E.
Vera C. Rubin Observatory, through the Legacy Survey of Space and Time (LSST), will allow us to derive a panchromatic view of variability in young stellar objects (YSOs) across all relevant timescales. Indeed, both short-term variability (on timescal
Externí odkaz:
http://arxiv.org/abs/2302.00897
Autor:
Stauffer, J. R., Marley, M. S., Gizis, J. E., Rebull, L. M., Carey, S. J., Krick, J., Ingalls, J. G., Lowrance, P., Glaccum, W., Kirkpatrick, J. D., Simon, A. A., Wong, M. H.
We have used the Spitzer Space Telescope in February 2016 to obtain high cadence, high signal-to-noise, 17-hour duration light curves of Neptune at 3.6 and 4.5 $\mu$m. The light curve duration was chosen to correspond to the rotation period of Neptun
Externí odkaz:
http://arxiv.org/abs/1608.07198
Route & Wolszczan (2016) recently detected five radio bursts from the T6 dwarf WISEP J112254.73+255021.5 and used the timing of these events to propose that this object rotates with an ultra-short period of ~17.3 minutes. We conducted follow-up obser
Externí odkaz:
http://arxiv.org/abs/1608.04390
Autor:
Leggett, S. K., Cushing, Michael C., Hardegree-Ullman, Kevin K., Trucks, Jesica L., Marley, M. S., Morley, Caroline V., Saumon, D., Carey, S. J., Fortney, J. J., Gelino, C. R., Gizis, J. E., Kirkpatrick, J. D., Mace, G. N.
We have monitored photometrically the Y0 brown dwarf WISEP J173835.52+273258.9 (W1738) at both near- and mid-infrared wavelengths. This ~1 Gyr-old 400K dwarf is at a distance of 8pc and has a mass around 5 M_Jupiter. We observed W1738 using two near-
Externí odkaz:
http://arxiv.org/abs/1607.07888
We present the analysis of four M dwarf stars -plus one M giant that seeped past our selection criteria- observed in Cycle 3 of Kepler Guest Observer program (GO3) in a search for intrinsic pulsations. Stellar oscillations in M dwarfs were theoretica
Externí odkaz:
http://arxiv.org/abs/1410.6076
Autor:
Riaz, B., Gizis, J. E.
We present Herschel SPIRE observations for the TW Hydrae association (TWA) brown dwarf discs SSSPM J1102-3431 (SS1102) and 2MASSW J1207334-393254 (2M1207). Both discs are undetected in the SPIRE 200-500mu bands. We have also analyzed the archival PAC
Externí odkaz:
http://arxiv.org/abs/1206.1839
We have revised our analysis of the SPIRE observations of 2MASSW J1207334-393254 (2M1207). Recent PACS observations show a bright source located ~25" east of 2M1207. There are issues in terms of the detection/non-detection of the bright source when c
Externí odkaz:
http://arxiv.org/abs/1201.4173
Autor:
Berger, E., Basri, G., Fleming, T. A., Giampapa, M. S., Gizis, J. E., Liebert, J., Martin, E. L., Phan-Bao, N., Rutledge, R. E.
Publikováno v:
Astrophys.J.709:332-341,2010
[Abridged] As part of our on-going investigation into the magnetic field properties of ultracool dwarfs, we present simultaneous radio, X-ray, and H-alpha observations of three M9.5-L2.5 dwarfs (BRI0021-0214, LSR060230.4+391059, and 2MASSJ052338.2-14
Externí odkaz:
http://arxiv.org/abs/0909.4783
Publikováno v:
Astrophys.J.705:1173-1182,2009
We present Spitzer/IRAC and MIPS 24mu archival observations for 28 brown dwarfs in the Upper Scorpius (UppSco) region. We find a disk fraction of 10.7%^(+8.7%)_(-3.3%). One object shows a small excess at 24mu but none at shorter wavelengths, and may
Externí odkaz:
http://arxiv.org/abs/0909.4274
Autor:
Berger, E., Rutledge, R. E., Phan-Bao, N., Basri, G., Giampapa, M. S., Gizis, J. E., Liebert, J., Martin, E., Fleming, T. A.
Publikováno v:
Astrophys.J.695:310-316,2009
[Abridged] We present an 8.5-hour simultaneous radio, X-ray, UV, and optical observation of the L dwarf binary 2MASSW J0746+20. We detect strong radio emission, dominated by short-duration periodic pulses at 4.86 GHz with P=124.32+/-0.11 min. The sta
Externí odkaz:
http://arxiv.org/abs/0809.0001