Zobrazeno 1 - 10
of 264
pro vyhledávání: '"Reipurth, Bo"'
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:
Bally, John, Reipurth, Bo
Hubble Space Telescope images obtained in 2018 are combined with archival HST data taken in 1995 to detect changes and measure proper motions in the HH 80/81 shock complex which is powered by the fastest known jet driven by a forming star, the massiv
Externí odkaz:
http://arxiv.org/abs/2308.13638
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:
Bally, John, Chia, Zen, Ginsburg, Adam, Reipurth, Bo, Tanaka, Kei E. I., Zinnecker, Hans, Faulhaber, John
Multi-epoch narrow-band HST images of the bipolar Hii region Sh2-106 reveal highly supersonic nebular proper motions which increase with projected distance from the massive young stellar object S106~IR, reaching over ~30 mas/year (~150 km/s at D=1.09
Externí odkaz:
http://arxiv.org/abs/2111.06510
Autor:
Hillenbrand, Lynne A., Isaacson, Howard, Rodriguez, Antonio C., Connelley, Michael, Reipurth, Bo, Kuhn, Michael A., Beck, Tracy, Perez, Diego Rodriguez
Magakian et al. (2019) called attention to the current bright state of LkHa 225 South, which over the past two decades has changed from $>20^m$ to $<13^m$. We present recent optical photometric monitoring that shows colorless, non-sinusoidal, periodi
Externí odkaz:
http://arxiv.org/abs/2108.05406
Autor:
Reipurth, Bo, Friberg, Per
Publikováno v:
MNRAS, 501, 5938-5947, 2021
HH 175 is an isolated Herbig-Haro object seen towards the B35 cloud in the lambda Ori region. We use deep Subaru 8m interference filter images and Spitzer images to show that HH 175 is a terminal shock in a large collimated outflow from the nearby em
Externí odkaz:
http://arxiv.org/abs/2105.00651
We present high-resolution $H$- and $K$-band spectroscopic observations of the archetypal T Tauri star T Tau North. Synthetic spectral modeling is used to derive the $K$-band temperature, surface gravity, magnetic field strength, and rotational veloc
Externí odkaz:
http://arxiv.org/abs/2006.10139
Autor:
Reipurth, Bo, Davis, C. J., Bally, John, Raga, A. C., Bowler, B. P., Geballe, T. R., Aspin, Colin, Chiang, Hsin-Fang
Publikováno v:
Astron. J. 158:107, 2019
The bipolar jet HH 212, among the finest collimated jets known, has so far been detected only in near-infrared H$_2$ emission. Here we present deep optical images that show two of the major bow shocks weakly detected in optical [SII] emission, as exp
Externí odkaz:
http://arxiv.org/abs/1911.05877
We report on the source Gaia 19ajj, identifying it as a young star associated with a little-studied star-forming region seen along a complex line-of-sight through the Gum Nebula. The optical lightcurve recently recorded by Gaia exhibits a slow and un
Externí odkaz:
http://arxiv.org/abs/1910.05790
Autor:
Hodapp, Klaus W., Reipurth, Bo, Pettersson, Bertil, Tonry, John, Denneau, Larry, Vallely, Patrick J., Shappee, Benjamin J., Armstrong, James D., Connelley, Michael S., Kochanek, C. S., Fausnaugh, Michael, Chini, Rolf, Haas, Martin, Figaredo, Catalina Sobrino
We report photometry and spectroscopy of the outburst of the young stellar object ESO-Halpha 99. The outburst was first noticed in Gaia alert Gaia18dvc and later by ATLAS. We have established the outburst light curve with archival ATLAS ``Orange'' fi
Externí odkaz:
http://arxiv.org/abs/1909.10636