Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Frew, D. J."'
A combination of archival multi-frequency radio observations with narrow-band HAlpha optical imagery and new confirmatory optical spectroscopy have shown that candidate supernova remnant G6.31+0.54 can now be confirmed as part of a Galactic supernova
Externí odkaz:
http://arxiv.org/abs/1806.09745
The Hong Kong/AAO/Strasbourg Halpha (HASH) planetary nebula database is an online research platform providing free and easy access to the largest and most comprehensive catalogue of known Galactic planetary nebulae (PNe) and a repository of observati
Externí odkaz:
http://arxiv.org/abs/1612.01521
Autor:
Montez Jr., R., Kastner, J. H., Balick, B., Behar, E., Blackman, E., Bujarrabal, V., Chu, Y. -H., Corradi, R. L. M., De Marco, O., Frank, A., Freeman, M., Frew, D. J., Guerrero, M. A., Jones, D., Lopez, J. A., Miszalski, B., Nordhaus, J., Parker, Q. A., Sahai, R., Sandin, C., Schonberner, D., Soker, N., Sokoloski, J. L., Steffen, M., Toalá, J. A., Ueta, T., Villaver, E., Zijlstra, A.
We present X-ray spectral analysis of 20 point-like X-ray sources detected in Chandra Planetary Nebula Survey (ChanPlaNS) observations of 59 planetary nebulae (PNe) in the solar neighborhood. Most of these 20 detections are associated with luminous c
Externí odkaz:
http://arxiv.org/abs/1412.2793
Autor:
Freeman, M., Montez Jr., R., Kastner, J. H., Balick, B., Frew, D. J., Jones, D., Miszalski, B., Sahai, R., Blackman, E., Chu, Y. -H., De Marco, O., Frank, A., Guerrero, M. A., Lopez, J. A., Zijlstra, A., Bujarrabal, V., Corradi, R. L. M., Nordhaus, J., Parker, Q. A., Sandin, C., Schönberner, D., Soker, N., Sokoloski, J. L., Steffen, M., Toalá, J. A., Ueta, T., Villaver, E.
We present results from the most recent set of observations obtained as part of the Chandra X-ray observatory Planetary Nebula Survey (ChanPlaNS), the first comprehensive X-ray survey of planetary nebulae (PNe) in the solar neighborhood (i.e., within
Externí odkaz:
http://arxiv.org/abs/1407.4141
Autor:
Sabin, L., Parker, Q. A., Corradi, R. L. M, Guzman-Ramirez, L., Morris, R. A. H., Zijlstra, A. A., Bojičić, I. S., Frew, D. J., Guerrero, M., Stupar, M., Barlow, M. J., Mora, F. Cortés, Drew, J. E., Greimel, R., Groot, P., Irwin, J. M., Irwin, M. J., Mampaso, A., Miszalski, B., Olguín, L., Phillipps, S., García, M. Santander, Viironen, K., Wright, N. J.
We present the first results of our search for new, extended Planetary Nebulae (PNe) based on careful, systematic, visual scrutiny of the imaging data from the INT Photometric H-alpha Survey of the Northern Galactic Plane (IPHAS). The newly uncovered
Externí odkaz:
http://arxiv.org/abs/1407.0109
Autor:
Drew, J. E., Gonzalez-Solares, E., Greimel, R., Irwin, M. J., Yoldas, A. Kupcu, Lewis, J., Barentsen, G., Eisloeffel, J., Farnhill, H. J., Martin, W. E., Walsh, J. R., Walton, N. A., Mohr-Smith, M., Raddi, R., Sale, S. E., Wright, N. J., Groot, P., Barlow, M. J., Corradi, R. L. M., Drake, J. J., Fabregat, J., Frew, D. J., Gaensicke, B. T., Knigge, C., Mampaso, A., Morris, R. A. H., Naylor, T., Parker, Q. A., Phillipps, S., Ruhland, C., Steeghs, D., Unruh, Y. C., Vink, J. S., Wesson, R., Zijlstra, A. A.
The VST Photometric Halpha Survey of the Southern Galactic Plane and Bulge (VPHAS+) is surveying the southern Milky Way in u, g, r, i and Halpha at 1 arcsec angular resolution. Its footprint spans the Galactic latitude range -5 < b < +5 at all longit
Externí odkaz:
http://arxiv.org/abs/1402.7024
Autor:
Sabin, L., Parker, Q. A., Contreras, M. E., Olguín, L., Frew, D. J., Stupar, M., Vázquez, R., Wright, N. J., Corradi, R. L. M, Morris, R. A. H
As part of a systematic search programme of a 10-degree wide strip of the Northern Galactic plane we present preliminary evidence for the discovery of four (and possibly five) new supernova remnants (SNRs). The pilot search area covered the 19-20 hou
Externí odkaz:
http://arxiv.org/abs/1301.6416
We have conducted a multi-wavelength study of the planetary nebula Abell 48 and give a revised classification of its nucleus as a hydrogen-deficient star of type [WN4]. The surrounding nebula has a morphology typical of PNe and importantly, is not en
Externí odkaz:
http://arxiv.org/abs/1212.5382
Autor:
Douchin, D., De Marco, O., Jacoby, G. H., Hillwig, T. C., Frew, D. J., Bojicic, I., Jasniewicz, G., Parker, Q. A.
Why 80% of planetary nebulae are not spherical is not yet understood. The Binary Hypothesis states that a companion to the progenitor of the central star of a planetary nebula is required to shape the nebula and even for a planetary nebula to be form
Externí odkaz:
http://arxiv.org/abs/1210.6865
Autor:
Douchin, D., De Marco, O., Jacoby, G. H., Hillwig, T. C., Frew, D. J., Bojicic, I., Jasniewicz, G., Parker, Q. A.
There is no quantitative theory to explain why a high 80% of all planetary nebulae are non-spherical. The Binary Hypothesis states that a companion to the progenitor of a central star of planetary nebula is required to shape the nebula and even for a
Externí odkaz:
http://arxiv.org/abs/1210.6226