Zobrazeno 1 - 10
of 633
pro vyhledávání: '"Geballe, T. R."'
We have investigated the behaviour of three strong near-infrared diffuse interstellar bands (DIBs) at {\lambda}13177 {\AA}, {\lambda}14680 {\AA}, and {\lambda}15272 {\AA}, on a larger sample of sightlines and over a wider range of extinctions than pr
Externí odkaz:
http://arxiv.org/abs/2406.19229
Autor:
Reipurth, Bo, Briceno, C., Geballe, T. R., Baranec, C., Mikkola, S., Cody, A. M., Connelley, M. S., Flores, C., Skiff, B. A., Armstrong, J. D., Law, N. M., Riddle, R.
We have discovered that the Halpha emission line star Haro 5-2, located in the 3-6 Myr old Ori OB1b association, is a young quadruple system. The system has a 2+2 configuration with an outer separation of 2.6 arcseconds and with resolved subarcsecond
Externí odkaz:
http://arxiv.org/abs/2405.09867
Autor:
Bernstein, L. S., Geballe, T. R.
We report new analyses of spectra of the $3.2-3.3~\mu$m absorption feature observed in the diffuse interstellar medium toward three Milky Way sources: 2MASS $J17470898-2829561$ (2M1747) and the Quintuplet Cluster, both located in the Galactic center,
Externí odkaz:
http://arxiv.org/abs/2312.03086
Autor:
Reipurth, Bo, Bally, J., Yen, Hsi-Wei, Arce, H. G., Rodriguez, L. -F., Raga, A. C., Geballe, T. R., Rao, R., Comeron, F., Mikkola, S., Aspin, C. A., Walawender, J.
The HH 24 complex harbors five collimated jets emanating from a small protostellar multiple system. We have carried out a multi-wavelength study of the jets, their driving sources, and the cloud core hosting the embedded stellar system, based on data
Externí odkaz:
http://arxiv.org/abs/2301.01813
Autor:
Ravi, Aravind P., Rho, Jeonghee, Park, Sangwook, Park, Seong Hyun, Yoon, Sung-Chul, Geballe, T. R., Vinko, Jozsef, Tinyanont, Samaporn, Bostroem, K. Azalee, Burke, Jamison, Hiramatsu, Daichi, Howell, D. Andrew, McCully, Curtis, Newsome, Megan, Gonzalez, Estefania Padilla, Pellegrino, Craig, Cartier, Regis, Pritchard, Tyler, Andersen, Morten, Blinnikov, Sergey, Dong, Yize, Blanchard, Peter, Kilpatrick, Charles D., Hoeflich, Peter, Valenti, Stefano, Filippenko, Alexei V., Suntzeff, Nicholas B., Seok, Ji Yeon, Konyves-Toth, R., Foley, Ryan J., Siebert, Matthew R., Jones, David O.
We present near-infrared (NIR) and optical observations of the Type Ic supernova (SN Ic) SN 2021krf obtained between days 13 and 259 at several ground-based telescopes. The NIR spectrum at day 68 exhibits a rising $K$-band continuum flux density long
Externí odkaz:
http://arxiv.org/abs/2211.00205
Autor:
Evans, A., Geballe, T. R., Woodward, C. E., Banerjee, D. P. K., Gehrz, R. D., Starrfield, S., Shahbandeh, M.
We present infrared spectroscopy of the 2019 eruption of the recurrent nova V3890 Sgr, obtained over the period 5.1-46.3 days after the eruption. The spectrum of the red giant became more prominent as the flux declined, and by day 46.3 dominated the
Externí odkaz:
http://arxiv.org/abs/2208.09356
Autor:
Evans, A., Banerjee, D. P. K., Geballe, T. R., Gehrz, R. D., Woodward, C. E., Hinkle, K., Joyce, R. R., Shahbandeh, M.
We present a $0.8-2.5\,\mu$m spectrum of the Very Late Thermal Pulse object V4334 Sgr (Sakurai's Object), obtained in 2020 September. The spectrum displays a continuum that rises strongly to longer wavelengths, and is considerably brighter than the m
Externí odkaz:
http://arxiv.org/abs/2201.04004
Autor:
Oka, Takeshi, Geballe, T. R.
Using a simple relation between the radial expansion velocity of diffuse gas in the Central Molecular Zone (CMZ) of the Galaxy and its distance from Sgr A$^\ast$ we estimate the physical depths within the CMZ of Star $\iota$ (2MASS $J$17470898-282956
Externí odkaz:
http://arxiv.org/abs/2111.05915
Autor:
Woodward, C. E., Banerjee, D. P. K., Geballe, T. R., Page, K. L., Starrfield, S., Wagner, R. M.
We present near infrared spectroscopy of Nova Herculis 2021 (V1674 Her), obtained over the first 70 days of its evolution. This fastest nova on record displays a rich emission line spectrum, including strong coronal line emission with complex structu
Externí odkaz:
http://arxiv.org/abs/2110.13053
Autor:
Aydi, E., Sokolovsky, K. V., Bright, J. S., Tremou, E., Nyamai, M. M., Evans, A., Strader, J., Chomiuk, L., Myers, G., Hambsch, F-J., Page, K. L., Buckley, D. A. H., Woodward, C. E., Walter, F. M., Mróz, P., Vallely, P. J., Geballe, T. R., Banerjee, D. P. K., Gehrz, R. D., Fender, R. P., Gromadzki, M., Kawash, A., Knigge, C., Mukai, K., Munari, U., Orio, M., Ribeiro, V. A. R. M., Sokoloski, J. L., Starrfield, S., Udalski, A., Woudt, P. A.
We present a detailed study of the 2019 outburst of the cataclysmic variable V1047~Cen, which hosted a classical nova eruption in 2005. The peculiar outburst occurred 14 years after the classical nova event and lasted for more than 400 days, reaching
Externí odkaz:
http://arxiv.org/abs/2108.07868