Zobrazeno 1 - 10
of 1 027
pro vyhledávání: '"Bessell P"'
Autor:
Onken, Christopher A., Wolf, Christian, Bessell, Michael S., Chang, Seo-Won, Luvaul, Lance C., Tonry, John L., White, Marc C., Da Costa, Gary S.
We present the fourth data release (DR4) of the SkyMapper Southern Survey (SMSS), the last major step in our hemispheric survey with six optical filters: u, v, g, r, i, z. SMSS DR4 covers 26,000 sq.deg from over 400,000 images acquired by the 1.3m Sk
Externí odkaz:
http://arxiv.org/abs/2402.02015
We present detailed abundance results based on UVES high dispersion spectra for 7 very and extremely metal-poor stars in the Large Magellanic Cloud. We confirm that all 7 stars, two of which have [Fe/H] $\leq$ --3.0, are the most metal-poor stars dis
Externí odkaz:
http://arxiv.org/abs/2312.12793
We report the discovery of a new Blue Large-Amplitude Pulsator, SMSS J184506-300804 (SMSS-BLAP-1) in Data Release 2 of the SkyMapper Southern Sky Survey. We conduct high-cadence photometric observations in the $u$ band to confirm a periodic modulatio
Externí odkaz:
http://arxiv.org/abs/2311.08775
We present results of a search for extremely metal-poor (EMP) stars in the Large Magellanic Cloud, which can provide crucial information about the properties of the first stars as well as on the formation conditions prevalent during the earliest stag
Externí odkaz:
http://arxiv.org/abs/2306.15492
Autor:
Jones, Hugh R. A., Pavlenko, Yakiv, Lyubchik, Yuri, Bessell, Mike, Allard, Nicole, Pinfield, David J.
A blue depression is found in the spectra of M dwarfs from 4000 to 4500A. This depression shows an increase toward lower temperatures though is particularly sensitive to gravity and metallicity. It is the single most sensitive feature in the optical
Externí odkaz:
http://arxiv.org/abs/2304.09219
Autor:
Martial Kassi N’Djetchi, Oumou Camara, Mathurin Koffi, Mamadou Camara, Dramane Kaba, Jacques Kaboré, Alkali Tall, Brice Rotureau, Lucy Glover, Mélika Barkissa Traoré, Minayegninrin Koné, Bamoro Coulibaly, Guy Pacome Adingra, Aissata Soumah, Mohamed Gassama, Abdoulaye Dansy Camara, Charlie Franck Alfred Compaoré, Aïssata Camara, Salimatou Boiro, Elena Perez Anton, Paul Bessell, Nick Van Reet, Bruno Bucheton, Vincent Jamonneau, Jean-Mathieu Bart, Philippe Solano, Sylvain Biéler, Veerle Lejon
Publikováno v:
Infectious Diseases of Poverty, Vol 13, Iss 1, Pp 1-16 (2024)
Abstract Background Serological screening tests play a crucial role to diagnose gambiense human African trypanosomiasis (gHAT). Presently, they preselect individuals for microscopic confirmation, but in future “screen and treat” strategies they w
Externí odkaz:
https://doaj.org/article/cddf7d328fd243efa70783ee893348cb
Autor:
Da Costa, G. S., Bessell, M. S., Nordlander, Thomas, Hughes, Arvind C. N., Buder, Sven, Mackey, A. D., Spitler, Lee R., Zucker, D. B.
The advent of large-scale stellar spectroscopic surveys naturally leads to the implementation of machine learning techniques to isolate, for example, small sub-samples of potentially interesting stars from the full data set. A recent example is the a
Externí odkaz:
http://arxiv.org/abs/2210.05161
Autor:
Crawford, Courtney L., Tisserand, Patrick, Clayton, Geoffrey C., Soon, Jamie, Bessell, Mike, Wood, Peter, Garcia-Hernandez, D. A., Ruiter, Ashley J., Seitenzahl, Ivo R.
Stellar spectral classification has been highly useful in the study of stars. While there is a currently accepted spectral classification system for carbon stars, the subset of Hydrogen-deficient Carbon (HdC) stars has not been well described by such
Externí odkaz:
http://arxiv.org/abs/2210.04416
Autor:
Li, Jiangdan, Onken, Christopher A., Wolf, Christian, Németh, Péter, Bessell, Mike, Li, Zhenwei, Zhang, Xiaobin, Li, Jiao, Wang, Luqian, Li, Lifang, Luo, Yangping, Chen, Hailiang, Ji, Kaifan, Chen, Xuefei, Han, Zhanwen
Binaries consisting of a hot subdwarf star and an accreting white dwarf (WD) are sources of gravitational wave radiation at low frequencies and possible progenitors of type Ia supernovae if the WD mass is large enough. Here, we report the discovery o
Externí odkaz:
http://arxiv.org/abs/2208.01253
Autor:
Emily Bessell, Rachel E. Finlay, Louisa K. James, Burkhard Ludewig, Nicola L. Harris, Philippe Krebs, Matthew R. Hepworth, Lalit Kumar Dubey
Publikováno v:
Cell Reports, Vol 43, Iss 8, Pp 114620- (2024)
Summary: Eosinophils are involved in host protection against multicellular organisms. However, their recruitment to the mesenteric lymph node (mLN) during type 2 immunity is understudied. Our results demonstrate that eosinophil association with lymph
Externí odkaz:
https://doaj.org/article/826575e8f87b4bb696fc4ae3f1bf31e0