Zobrazeno 1 - 10
of 1 491
pro vyhledávání: '"Colombo J."'
Autor:
Anastasopoulou, K., Guarcello, M. G., Flaccomio, E., Sciortino, S., Benatti, S., De Becker, M., Wright, N. J., Drake, J., Albacete-Colombo, J. F., Andersen, M., Argiroffi, C., Bayo, A., Castellanos, R., Gennaro, M., Grebel, E. K., Miceli, M., Najarro, F., Negueruela, I., Prisinzano, L., Ritchie, B., Robberto, M., Sabbi, E., Zeidler, P.
We present the most comprehensive and deepest X-ray study to date of the properties of the richest Wolf-Rayet (WR) population observed in a single stellar cluster, Westerlund 1 (Wd1). This work is based on 36 Chandra observations obtained from the "E
Externí odkaz:
http://arxiv.org/abs/2408.11087
Autor:
Guarcello, M. G., Flaccomio, E., Albacete-Colombo, J. F., Almendros-Abad, V., Anastasopoulou, K., Andersen, M., Argiroffi, C., Bayo, A., Bartlett, E. S., Bastian, N., De Becker, M., Best, W., Bonito, R., Borghese, A., Calzetti, D., Castellanos, R., Cecchi-Pestellini, C., Clark, S., Clarke, C. J., Zelati, F. Coti, Damiani, F., Drake, J. J., Gennaro, M., Ginsburg, A., Grebel, E. K., Hora, J. L., Israel, G. L., Lawrence, G., Locci, D., Mapelli, M., Martinez-Galarza, J. R., Micela, G., Miceli, M., Moraux, E., Muzic, K., Najarro, F., Negueruela, I., Nota, A., Pallanca, C., Prisinzano, L., Ritchie, B., Robberto, M., Rom, T., Sabbi, E., Scholz, A., Sciortino, S., Trigilio, C., Umana, G., Winter, A., Wright, N. J., Zeidler, P.
Context. With a mass exceeding several 10^4 solar masses and a rich and dense population of massive stars, supermassive young star clusters represent the most massive star-forming environment that is dominated by the feedback from massive stars and g
Externí odkaz:
http://arxiv.org/abs/2312.08947
Publikováno v:
Volume 525, Issue 2, October 2023, Pages 1726 1730
NGC 2071 is a star-forming region that overlaps with three $\gamma$-ray sources detected by the Fermi Space Telescope. We propose that strong flare activity in T Tauri stars could produce $\gamma$-ray emission in a way that makes them a counterpart t
Externí odkaz:
http://arxiv.org/abs/2308.12142
Autor:
Kornecki, P., Pellizza, L. J., del Palacio, S., Müller, A. L., Albacete-Colombo, J. F., Romero, G. E.
Publikováno v:
A&A 641, A147 (2020)
Context. Near a dozen star-forming galaxies have been detected in gamma-rays by the Fermi observatory in the last decade. A remarkable property of this sample is the quasi-linear relation between the gamma-ray luminosity and the star formation rate,
Externí odkaz:
http://arxiv.org/abs/2007.07430
More than 30 % of $\gamma$-ray sources detected in the last source catalog of the Fermi satellite have no observational counterpart at other frequencies. A significant fraction of these sources is positionally in agreement with star-forming regions d
Externí odkaz:
http://arxiv.org/abs/2006.16413
Publikováno v:
Bolet\'in de la Asociaci\'on Argentina de Astronomia, 2020, Vol61
The Cygnus\,OB2 region, $\sim 3.5-5~\text{Myr}$ old, contains one of the most significant populations of massive stars of the Milky Way. Such stars substantially contribute to producing large scale soft ($<2~\text{keV}$) diffuse X-ray emission. We al
Externí odkaz:
http://arxiv.org/abs/2006.16022
We report new CO observations and a detailed molecular-line study of the mixed morphology (MM) supernova remnant (SNR) G359.1-0.5, which contains six OH (1720 MHz) masers along the radio shell, indicative of shock-cloud interaction. Observations of 1
Externí odkaz:
http://arxiv.org/abs/2002.08921
Autor:
Flaccomio, E., Albacete-Colombo, J. F., Drake, J. J., Guarcello, M. G., Kashyap, V., Wright, N. J., Briggs, K., Ercolano, B., Mccollogh, M., Sciortino, S.
We analyze the X-ray spectra of the $\sim$8000 sources detected in the Cygnus OB2 Chandra Legacy Survey (Drake et al., this issue), with the goals of characterizing the coronal plasma of the young low-mass stars in the region and estimating their int
Externí odkaz:
http://arxiv.org/abs/1811.06769
Autor:
Colombo, J. F. Albacete, Drake, J. J., Flaccomio, E., Wright, N. J., Kashyap, V., Guarcello, M. G., Briggs, K., Drew, J. E., Fenech, D. M., Micela, G., McCollough, M., Prinja, R. K., Schneider, N., Sciortino, S., Vink, J. S.
We present a large-scale study of diffuse X-ray emission in the nearby massive stellar association Cygnus OB2 as part of the Chandra Cygnus OB2 Legacy Program. We used 40 Chandra X-ray ACIS-I observations covering $\sim$1.0 deg$^2$. After removing 79
Externí odkaz:
http://arxiv.org/abs/1806.01231