Zobrazeno 1 - 10
of 161
pro vyhledávání: '"Gull, Theodore. R."'
Autor:
Gull, Theodore R., Hartman, Henrik, Corcoran, Michael F., Damineli, Augusto, Madura, Thomas, Moffat, Anthony F. J., Richardson, Noel D., Weigelt, Gerd
Eta Carinae underwent the Great Eruption in the 1840s and a Lesser Eruption in the 1890s. Its apparent spectrum, modified by intervening ejecta, the Homunculus and Little Homunculus, continues to evolve but contains information pertaining to events i
Externí odkaz:
http://arxiv.org/abs/2403.13954
Autor:
Damineli, Augusto, Richardson, Noel D., Navarete, Felipe, Gull, Theodore. R., Fernández-Lajús, Eduardo, Moffat, Anthony F. J., Hillier, Desmond J., Weigelt, Gerd, Corcoran, Michael F.
Changes in the flux and spectrum of Eta Carinae since 1900 have been attributed to the evolution of the central binary by some. Others suggest evolution in the occulting ejecta. The brightness jump in the 1940s, which coincided with the appearance of
Externí odkaz:
http://arxiv.org/abs/2312.17421
Autor:
Lau, Ryan M., Hankins, Matthew J., Sanchez-Bermudez, Joel, Thatte, Deepashri, Soulain, Anthony, Cooper, Rachel A., Sivaramakrishnan, Anand, Corcoran, Michael F., Greenbaum, Alexandra Z., Gull, Theodore R., Han, Yinuo, Jones, Olivia C., Madura, Thomas, Moffat, Anthony F. J., Morris, Mark R., Onaka, Takashi, Russell, Christopher M. P., Richardson, Noel D., Smith, Nathan, Tuthill, Peter, Volk, Kevin, Weigelt, Gerd, Williams, Peredur M.
We present infrared aperture masking interferometry (AMI) observations of newly formed dust from the colliding winds of the massive binary system Wolf-Rayet (WR) 137 with JWST using the Near Infrared Imager and Slitless Spectrograph (NIRISS). NIRISS
Externí odkaz:
http://arxiv.org/abs/2311.15948
Autor:
Gull, Theodore R., Hartman, Henrik, Teodoro, Mairan, Hillier, D. John, Corcoran, Michael F., Damineli, Augusto, Hamaguchi, Kenji, Madura, Thomas, Moffat, Anthony F. J., Morris, Patrick, Richardson, Noel D., Stevens, Ian R., Weigelt, Gerd
Previous STIS long-slit observations of Eta Carinae identified numerous absorption features in both the stellar spectrum, and in the adjacent nebular spectra, along our line-of-sight. The absorption features became temporarily stronger when the ioniz
Externí odkaz:
http://arxiv.org/abs/2305.13216
Autor:
Strawn, Emily, Richardson, Noel D., Moffat, Anthony F. J., Ibrahim, Nour, Lane, Alexis, Pickett, Connor, Chené, André-Nicolas, Corcoran, Michael F., Damineli, Augusto, Gull, Theodore R., Hillier, D. John, Morris, Patrick, Pablo, Herbert, Thomas, Joshua D., Stevens, Ian R., Teodoro, Mairan, Weigelt, Gerd
The binary eta Carinae is the closest example of a very massive star, which may have formed through a merger during its Great Eruption in the mid-nineteenth century. We aimed to confirm and improve the kinematics using a spectroscopic data set taken
Externí odkaz:
http://arxiv.org/abs/2301.00064
Autor:
Lau, Ryan M., Hankins, Matthew J., Han, Yinuo, Argyriou, Ioannis, Corcoran, Michael F., Eldridge, Jan J., Endo, Izumi, Fox, Ori D., Marin, Macarena Garcia, Gull, Theodore R., Jones, Olivia C., Hamaguchi, Kenji, Lamberts, Astrid, Law, David R., Madura, Thomas, Marchenko, Sergey V., Matsuhara, Hideo, Moffat, Anthony F. J., Morris, Mark R., Morris, Patrick W., Onaka, Takashi, Ressler, Michael E., Richardson, Noel D., Russell, Christopher M. P., Sanchez-Bermudez, Joel, Smith, Nathan, Soulain, Anthony, Stevens, Ian R., Tuthill, Peter, Weigelt, Gerd, Williams, Peredur M., Yamaguchi, Ryodai
Publikováno v:
Lau, R.M., Hankins, M.J., Han, Y. et al. Nested dust shells around the Wolf-Rayet binary WR 140 observed with JWST. Nat Astron (2022)
Massive colliding-wind binaries that host a Wolf-Rayet (WR) star present a potentially important source of dust and chemical enrichment in the interstellar medium (ISM). However, the chemical composition and survival of dust formed from such systems
Externí odkaz:
http://arxiv.org/abs/2210.06452
Autor:
Espinoza-Galeas, David, Corcoran, Michael Francis, Hamaguchi, Kenji, Russell, Christopher M. P., Gull, Theodore R., Moffat, Anthony, Richardson, Noel D., Weigelt, Gerd, Hillier, D. John, Damineli, Augusto, Stevens, Ian R., Madura, Thomas, Gendreau, Keith, Arzoumanian, Zaven, Navarete, Felipe
We report high-precision X-ray monitoring observations in the 0.4-10 keV band of the luminous, long-period colliding-wind binary Eta Carinae up to and through its most recent X-ray minimum/periastron passage in February 2020. Eta Carinae reached its
Externí odkaz:
http://arxiv.org/abs/2207.03457
Eta Carinae: an evolving view of the central binary, its interacting winds and its foreground ejecta
Autor:
Gull, Theodore R., Hillier, D. John, Hartman, Henrik, Corcoran, Michael F., Damineli, Augusto, Espinoza-Galeas, David, Hamaguchi, Kenji, Navarete, Felipe, Nielsen, Krister, Madura, Thomas, Moffat, Anthony F. J., Morris, Patrick, Richardson, Noel D., Russell, Christopher M. P., Stevens, Ian R., Weigelt, Gerd
FUV spectra of Eta Car, recorded across two decades with HST/STIS, document multiple changes in resonant lines caused by dissipating extinction in our line of sight. The FUV flux has increased nearly ten-fold which has led to increased ionization of
Externí odkaz:
http://arxiv.org/abs/2205.15116
Autor:
Zapata, Luis A., Loinard, Laurent, Fernández-López, Manuel, Toalá, Jesús A., González, Ricardo F., guez, Luis F. Rodrí, Gull, Theodore R., Morris, Patrick W., Menten, Karl M., Kamiński, Tomasz
The nature and origin of the molecular gas component located in the circumstellar vicinity of $\eta$ Carinae are still far from being completely understood. Here, we present Atacama Large Millimeter/Submillimeter Array (ALMA) CO(3$-$2) observations w
Externí odkaz:
http://arxiv.org/abs/2205.13405
Autor:
Morris, Patrick W., Charnley, Steven B., Corcoran, Michael, Cordiner, Martin, Damineli, Augusto, Groh, Jose H., Gull, Theodore R., Loinard, Laurent, Madura, Thomas, Mehner, Andrea, Moffat, Anthony, Palmer, Maureen Y., Rau, Gioia, Richardson, Noel D., Weigelt, Gerd
In circumstellar gas, the complex organic molecule methanol has been found almost exclusively around young stellar objects, and is thus regarded as a signpost of recent star formation. Here we report the first probable detection of methanol around an
Externí odkaz:
http://arxiv.org/abs/2002.11053