Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Awad, Zainab"'
Autor:
Aboushelib, Mohamed F., Morcos, Abdelfady B., Nawar, Samir, Shalabiea, Osama M., Awad, Zainab
Publikováno v:
Nature portfolio, Scientific Reports (2023), volume 13, page 16754
Photoelectric observations of night sky brightness (NSB) at different zenith distances and azimuths, covering all the sky, at the Egyptian Kottamia Astronomical observatory (KAO) site of coordinates {\phi} = 29{\deg}55.9'N and {\lambda} = 31{\deg}49.
Externí odkaz:
http://arxiv.org/abs/2310.05429
Autor:
Awad, Zainab, Ali, Alaa
We addressed the physical and kinematical properties of Wolf -- Rayet [WR] central stars (CSs) and their hosting planetary nebulae (PNe). The studied sample comprises all [WR] CSs that are currently known. The analysis is based on recent observations
Externí odkaz:
http://arxiv.org/abs/2305.16181
Characterising the high-mass star forming region IRAS 18144-1723 through methanol maser observations
Autor:
Khafagy, Esraa, Edris, khaled A., Shalabiea, Osama M., Bartkiewicz, Anna, Richards, Anita M. S., Awad, Zainab
We introduce a study of the massive star forming region IRAS 18144--1723 using observations of the 6.7 GHz methanol maser line. Such regions are opaque at short wavelengths but can be observed through radio emission lines. In this study we traced the
Externí odkaz:
http://arxiv.org/abs/2211.11211
Autor:
Awad, Zainab, Viti, Serena
Observations of diffuse clouds showed that they contain a number of simple hydrocarbons (e.g. CH, C$_2$H, (l- and c-)C$_3$H$_2$, and C$_4$H) in abundances that may be difficult to understand on the basis of conventional gas-phase chemical models. Rec
Externí odkaz:
http://arxiv.org/abs/2202.00425
Methyl formate, HCOOCH$_3$, and many of its isotopologues have been detected in astrophysical regions with considerable abundances. However, the recipe for the formation of this molecule and its isotopologues is not yet known. In this work, we attemp
Externí odkaz:
http://arxiv.org/abs/2106.09263
Akademický článek
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Understanding the dynamics of galaxy triplet systems is one of the significant ways of obtaining insight into the dynamics of large galaxy clusters. Toward that aim, we present a detailed study of all isolated triplet systems (total of 315) taken fro
Externí odkaz:
http://arxiv.org/abs/1811.00503
Autor:
Awad, Zainab, Shalabeia, Osama M.
Publikováno v:
Astrophys Space Sci (2017) 362:83
We present the first gas-grain astrochemical model of the NGC 2264 CMM3 protostellar core. The chemical evolution of the core is affected by changing its physical parameters such as the total density and the amount of gas-depletion onto grain surface
Externí odkaz:
http://arxiv.org/abs/1703.04632
Publikováno v:
The Astrophysical Journal, Volume 826, Issue 2, article id. 207, 7 pp. (2016)
Previous work by various authors has suggested that the detection by Herschel/HIFI of nitrogen hydrides along the low density lines of sight towards G10.6-0.4 (W31C) cannot be accounted for by gas-phase chemical models. In this paper we investigate t
Externí odkaz:
http://arxiv.org/abs/1605.08573
Autor:
Tawfeek, Amira A., Saha, Kanak, Vaghmare, Kaustubh, Kembhavi, A.K., Takey, Ali, Cervantes Sodi, Bernardo, Fritz, Jacopo, Awad, Zainab, Ali, Gamal B., Hayman, Z.M.
Publikováno v:
In New Astronomy August 2021 87
