Zobrazeno 1 - 10
of 27 847
pro vyhledávání: '"346"'
Autor:
Habel, Nolan, Nally, Conor, Lenkic, Laura, Meixner, Margaret, De Marchi, Guido, Kavanagh, Patrick J., Fahrion, Katja, Nayak, Omnarayani, Hirschauer, Alec S., Jones, Olivia C., Biazzo, Katia, Brandl, Bernhard R., Jaspers, Jeroen, Pontoppidan, Klaus M., Robberto, Massimo, Rogers, Ciaran, Sabbi, Elena, Sargent, B. A., Soderblom, David R., Zeidler, Peter
We present a JWST imaging survey with NIRCam and MIRI of NGC 346, the brightest star-forming region in the Small Magellanic Cloud (SMC). By combining aperture and point spread function (PSF) photometry of eleven wavelength bands across these two inst
Externí odkaz:
http://arxiv.org/abs/2404.16242
Autor:
Rickard, M. J., Pauli, D.
Publikováno v:
A&A 674, A56 (2023)
Most massive stars are believed to be born in close binary systems where they can exchange mass, which impacts the evolution of both binary components. Their evolution is of great interest in the search for the progenitors of gravitational waves. How
Externí odkaz:
http://arxiv.org/abs/2304.13720
Autor:
Jones, Olivia C., Nally, Conor, Habel, Nolan, Lenkić, Laura, Fahrion, Katja, Hirschauer, Alec S., Chu, Laurie E. U., Meixner, Margaret, De Marchi, Guido, Nayak, Omnarayani, Robberto, Massimo, Sabbi, Elena, Zeidler, Peter, de Oliveira, Catarina Alves, Beck, Tracy, Biazzo, Katia, Brandl, Bernhard, Giardino, Giovanna, Jerabkova, Teresa, Keyes, Charles, Muzerolle, James, Panagia, Nino, Pontoppidan, Klaus M., Rogers, Ciaran, Sargent, B. A., Soderblom, David R.
JWST observations of NGC 346, a star-forming region in the metal-poor Small Magellanic Cloud, reveal a substantial population of sub-solar mass young stellar objects (YSOs) with IR excess. We detected $\sim$500 YSOs and pre main sequence (PMS) stars
Externí odkaz:
http://arxiv.org/abs/2301.03932
We present the stellar radial velocity analysis of the central 1x1' of the young massive Small Magellanic Cloud star cluster NGC 346. Using VLT/MUSE integral field spectroscopy in combination with Hubble Space Telescope photometry we extract 103 spec
Externí odkaz:
http://arxiv.org/abs/2209.03237
Autor:
Jones, O. C., Reiter, M., Sanchez-Janssen, R., Evans, C. J., Robertson, C. S., Meixner, M., Ochsendorf, B.
We present medium-resolution (R $\sim$ 4000) YJ, H \& K band spectroscopy of candidate young stellar objects (YSOs) in NGC~346, the most active star-formation region in the metal-poor (Z = 1/5 Z$_{\sun}$) Small Magellanic Cloud. The spectra were obta
Externí odkaz:
http://arxiv.org/abs/2209.00040
Publikováno v:
A&A 634, A6 (2020)
Analyses of large spectroscopic surveys of early-type stars in the LMC have found an excess of nitrogen enriched B-type targets with a vsini<40 km/s compared with the predictions of single star evolutionary models incorporating rotational mixing. By
Externí odkaz:
http://arxiv.org/abs/1912.07539
Autor:
Valerdi, Mabel, Peimbert, Antonio
To understand the Universe a highly accurate ($\sim$1%) primordial helium abundance (Yp) determination plays an important role; it is extremely important to constrain: Big Bang Nucleosynthesis models, elementary particle physics, and the study of gal
Externí odkaz:
http://arxiv.org/abs/1905.05102
Spectroscopy for 247 stars towards the young cluster NGC 346 in the Small Magellanic Cloud has been combined with that for 116 targets from the VLT-FLAMES Survey of Massive Stars. Spectral classification yields a sample of 47 O-type and 287 B-type sp
Externí odkaz:
http://arxiv.org/abs/1905.03359
To place meaningful constraints on Big Bang Nucleosynthesis models, the primordial helium abundance determination is crucial. Low-metallicity HII regions have been used to estimate it since their statistical uncertainties are relatively small. We pre
Externí odkaz:
http://arxiv.org/abs/1904.01594
Autor:
Handler, Gerald, Pigulski, Andrzej, Daszyńska-Daszkiewicz, Jadwiga, Irrgang, Andreas, Kilkenny, David, Guo, Zhao, Przybilla, Norbert, Aliçavuş, Filiz Kahraman, Kallinger, Thomas, Pascual-Granado, Javier, Niemczura, Ewa, Różański, Tomasz, Chowdhury, Sowgata, Buzasi, Derek L., Mirouh, Giovanni M., Bowman, Dominic M., Johnston, Cole, Pedersen, May G., Simón-Diaz, Sergio, Moravveji, Ehsan, Gazeas, Kosmas, De Cat, Peter, Vanderspek, Roland K., Ricker, George R.
We report an analysis of the first known Beta Cep pulsator observed by the TESS mission, the runaway star PHL 346 = HN Aqr. The star, previously known as a singly-periodic pulsator, has at least 34 oscillation modes excited, 12 of those in the g-mode
Externí odkaz:
http://arxiv.org/abs/1902.08312