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pro vyhledávání: '"Shetty, Rahul"'
The carbon monoxide (CO) rotational transition lines are the most common tracers of molecular gas within giant molecular clouds (MCs). We study the ratio ($R_{2-1/1-0}$) between CO's first two emission lines and examine what information it provides a
Externí odkaz:
http://arxiv.org/abs/1611.02127
Autor:
Roman-Duval, Julia, Heyer, Mark, Brunt, Christopher, Clark, Paul, Klessen, Ralf, Shetty, Rahul
Emission from carbon monoxide (CO) is ubiquitously used as a tracer of dense star forming molecular clouds. There is, however, growing evidence that a significant fraction of CO emission originates from diffuse molecular gas. Quantifying the contribu
Externí odkaz:
http://arxiv.org/abs/1601.00937
Autor:
Shetty, Rahul, Roman-Duval, Julia, Hony, Sacha, Cormier, Diane, Klessen, Ralf S., Konstandin, Lukas K., Loredo, Thomas, Pellegrini, Eric W., Ruppert, David
We present a method to simultaneously model the dust far-infrared spectral energy distribution (SED) and the total infrared $-$ carbon monoxide (CO) integrated intensity $(S_{\rm IR}-I_{\rm CO})$ relationship. The modelling employs a hierarchical Bay
Externí odkaz:
http://arxiv.org/abs/1509.00639
Autor:
Konstandin, Lukas, Schmidt, Wolfram, Girichidis, Philipp, Peters, Thomas, Shetty, Rahul, Klessen, Ralf S.
We model driven, compressible, isothermal, turbulence with Mach numbers ranging from the subsonic ($\mathcal{M} \approx 0.65$) to the highly supersonic regime ($\mathcal{M}\approx 16 $). The forcing scheme consists both solenoidal (transverse) and co
Externí odkaz:
http://arxiv.org/abs/1506.03834
Autor:
Stanchev, Orlin, Veltchev, Todor V., Kauffmann, Jens, Donkov, Sava, Shetty, Rahul, Körtgen, Bastian, Klessen, Ralf S.
We present an analysis of probability distribution functions (pdfs) of column density in different zones of the star-forming region Perseus and its diffuse environment based on the map of dust opacity at 353 GHz available from the Planck archive. The
Externí odkaz:
http://arxiv.org/abs/1505.01622
Autor:
Shetty, Rahul.
Thesis (Ph. D.) -- University of Maryland, College Park, 2007.
Thesis research directed by: Dept. of Astronomy. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available
Thesis research directed by: Dept. of Astronomy. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available
Externí odkaz:
http://hdl.handle.net/1903/7603
We compute structure functions and Fourier spectra of 2D centroid velocity (CV) maps in order to study the gas dynamics of typical molecular clouds (MCs) in numerical simulations. We account for a simplified treatment of time-dependent chemistry and
Externí odkaz:
http://arxiv.org/abs/1410.6508
Recent statistical analysis of two extragalactic observational surveys strongly indicate a sublinear Kennicutt-Schmidt (KS) relationship between the star formation rate (Sigsfr) and molecular gas surface density (Sigmol). Here, we consider the conseq
Externí odkaz:
http://arxiv.org/abs/1404.5964
Recent observational and theoretical investigations have emphasised the importance of filamentary networks within molecular clouds as sites of star formation. Since such environments are more complex than those of isolated cores, it is essential to u
Externí odkaz:
http://arxiv.org/abs/1402.5279