Zobrazeno 1 - 10
of 180
pro vyhledávání: '"Corcoran, M. F."'
Autor:
Das, B., Petit, V., Nazé, Y., Corcoran, M. F., Cohen, D. H., Biswas, A., Chandra, P., David-Uraz, A., Leutenegger, M. A., Neiner, C., Pablo, H., Paunzen, E., Shultz, M. E., ud-Doula, A., Wade, G. A.
We report detailed X-ray observations of the unique binary system $\epsilon$ Lupi, the only known short-period binary consisting of two magnetic early-type stars. The components have comparably strong, but anti-aligned magnetic fields. The orbital an
Externí odkaz:
http://arxiv.org/abs/2304.12882
Autor:
Damineli, A., Hillier, D. J., Navarete, F., Moffat, A. F. J., Weigelt, G., Corcoran, M. F., Gull, T. R., Richardson, N. D., Ho, T. P., Madura, T. I., Espinoza-Galeas, D., Hartman, H., Morris, P., Pickett, C. S., Stevens, I. R., Russell, C. M. P., Hamaguchi, K., Jablonski, F. J., Teodoro, M., McGee, P., Cacella, P., Heathcote, B., Harrison, K., Johnston, M., Bohlsen, T., Di Scala, G.
Eta Carinae ($\eta$\,Car) exhibits a unique set of P Cygni profiles with both broad and narrow components. Over many decades, the spectrum has changed -- there has been an increase in observed continuum fluxes and a decrease in FeII and HI emission l
Externí odkaz:
http://arxiv.org/abs/2211.01445
Autor:
Pollock, A. M. T., Corcoran, M. F., Stevens, I. R., Russell, C. M. P., Hamaguchi, K., Williams, P. M., Moffat, A. F. J., Weigelt, G., Shenavrin, V., Richardson, N. D., Espinoza, D., Drake, S. A.
WR 140 is a long-period, highly eccentric Wolf-Rayet star binary system with exceptionally well-determined orbital and stellar parameters. Bright, variable X-ray emission is generated in shocks produced by the collision of the winds of the WC7pd+O5.5
Externí odkaz:
http://arxiv.org/abs/2109.10350
Autor:
Damineli, A., Navarete, F., Hillier, D. J., Moffat, A. F. J., Corcoran, M. F., Gull, T. R., Richardson, N. D., Weigelt, G., Morris, P. W., Stevens, I.
Eta Carinae is a massive interacting binary system shrouded in a complex circumstellar environment whose evolution is the source of the long-term brightening observed during the last 80 years. An occulter, acting as a natural coronagraph, impacts obs
Externí odkaz:
http://arxiv.org/abs/2105.00590
Autor:
Weigelt, G., Hofmann, K. -H., Schertl, D., Clementel, N., Corcoran, M. F., Damineli, A., de Wit, W. -J., Grellmann, R., Groh, J., Guieu, S., Gull, T., Heininger, M., Hillier, D. J., Hummel, C. A., Kraus, S., Madura, T., Mehner, A., Mérand, A., Millour, F., Moffat, A. F. J., Ohnaka, K., Patru, F., Petrov, R. G., Rengaswamy, S., Richardson, N. D., Rivinius, T., Schöller, M., Teodoro, M., Wittkowski, M.
Context. The mass loss from massive stars is not understood well. Eta Car is a unique object for studying the massive stellar wind during the LBV phase. It is also an eccentric binary with a period of 5.54 yr. The nature of both stars is uncertain, a
Externí odkaz:
http://arxiv.org/abs/1610.05438
Autor:
Teodoro, M., Damineli, A., Heathcote, B., Richardson, N. D., Moffat, A. F. J., St-Jean, L., Russell, C., Gull, T. R., Madura, T. I., Pollard, K. R., Walter, F., Coimbra, A., Prates, R., Fernández-Lajús, E., Gamen, R. C., Hickel, G., Henrique, W., Navarete, F., Andrade, T., Jablonski, F., Luckas, P., Locke, M., Powles, J., Bohlsen, T., Chini, R., Corcoran, M. F., Hamaguchi, K., Groh, J. H., Hillier, D. J., Weigelt, G.
{\eta} Carinae is an extremely massive binary system in which rapid spectrum variations occur near periastron. Most notably, near periastron the He II $\lambda 4686$ line increases rapidly in strength, drops to a minimum value, then increases briefly
Externí odkaz:
http://arxiv.org/abs/1601.03396
Autor:
Corcoran, M. F., Hamaguchi, K., Liburd, J. K., Morris, D., Gull, T. R., Madura, T. I., Teodoro, M., Moffat, A. F. J., Richardson, N. D., Russell, C. M. P., Pollock, A. M. T., Owocki, S. P.
Eta Carinae is the nearest example of a supermassive, superluminous, unstable star. Mass loss from the system is critical in shaping its circumstellar medium and in determining its ultimate fate. Eta Car currently loses mass via a dense, slow stellar
Externí odkaz:
http://arxiv.org/abs/1507.07961
Autor:
Corcoran, M. F., Nichols, J. S., Pablo, H., Shenar, T., Pollock, A. M. T., Waldron, W. L., Moffat, A. F. J., Richardson, N. D., Russell, C. M. P., Hamaguchi, K., Huenemoerder, D. P., Oskinova, L., Hamann, W. -R., Naze, Y., Ignace, R., Evans, N. R., Lomax, J. R., Hoffman, J. L., Gayley, K., Owocki, S. P., Leutenegger, M., Gull, T. R., Hole, K. T., Lauer, J., Iping, R. C.
Publikováno v:
ApJ, 809, 132 (15p,2015)
We present an overview of four phase-constrained Chandra HETGS X-ray observations of Delta Ori A. Delta Ori A is actually a triple system which includes the nearest massive eclipsing spectroscopic binary, Delta Ori Aa, the only such object which can
Externí odkaz:
http://arxiv.org/abs/1507.05101
Autor:
Nichols, J. S., Huenemoerder, D. P., Corcoran, M. F., Waldron, W., Nazé, Y., Pollock, A. M. T., Moffat, A. F. J., Lauer, J., Shenar, T., Russell, C. M. P., Richardson, N. D., Pablo, H., Evans, N R., Hamaguchi, K., Gull, T., Hamann, W. R., Oskinova, L., Ignace, R., Hoffman, Jennifer L., Hole, K. T., Lomax, J. R.
Publikováno v:
ApJ, 809, 133 (21p,2015)
We present time-resolved and phase-resolved variability studies of an extensive X-ray high-resolution spectral dataset of the $\delta$ Orionis Aa binary system. The four observations, obtained with Chandra ACIS HETGS, have a total exposure time of ~4
Externí odkaz:
http://arxiv.org/abs/1507.04972
Autor:
Shenar, T., Oskinova, L., Hamann, W. -R., Corcoran, M. F., Moffat, A. F. J., Pablo, H., Richardson, N. D., Waldron, W. L., Huenemoerder, D. P., Apellániz, J. Maíz, Nichols, J. S., Todt, H., Nazé, Y., Hoffman, J. L., Pollock, A. M. T., Negueruela, I.
Publikováno v:
ApJ, 809, 135 (20p,2015)
Eclipsing systems of massive stars allow one to explore the properties of their components in great detail. We perform a multi-wavelength, non-LTE analysis of the three components of the massive multiple system $\delta$ Ori A, focusing on the fundame
Externí odkaz:
http://arxiv.org/abs/1503.03476