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Marco Spaans

Researcher at Kapteyn Astronomical Institute

Publications -  219
Citations -  12155

Marco Spaans is an academic researcher from Kapteyn Astronomical Institute. The author has contributed to research in topics: Galaxy & Star formation. The author has an hindex of 57, co-authored 219 publications receiving 11467 citations. Previous affiliations of Marco Spaans include University of Groningen & Max Planck Society.

Papers
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High-resolution HNC 3-2 SMA observations of Arp 220

Susanne Aalto, +7 more
- 01 Jan 2009 - 
TL;DR: In this paper, the properties of the nuclear molecular gas of the ultra luminous merger Arp 220 and the effects of a nuclear source on gas excitation and chemistry were investigated.
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Probing X-ray irradiation in the nucleus of NGC 1068 with observations of high-J lines of dense gas tracers

J.P. Pérez-Beaupuits, +7 more
- 01 Aug 2009 - 
TL;DR: In this paper, the authors used the James Clerk Maxwell Telescope to observe the J = 4-3 transition of HCN, HNC, and HCO(+), as well as the CN N(J) = 2(5/2) - 1(3/2).
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The impact of Lyman α trapping on the formation of primordial objects

Muhammad Latif, +3 more
- 01 Mar 2011 - 
TL;DR: In this article, the results of high-resolution 3D cosmological simulations of the formation of primordial objects using the adaptive mesh refinement code FLASH by including in an approximate manner the radiative transfer effects of Lyman alpha photons are presented.
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Diagnostics of the molecular component of photon-dominated regions with mechanical heating. II. Line intensities and ratios

M. V. Kazandjian, +5 more
- 01 Feb 2015 - 
TL;DR: In this article, the effect of mechanical heating on atomic fine-structure and molecular lines and their ratios were investigated and the equilibria were solved for numerically using the optimized version of the Leiden PDR-XDR code.
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Diagnostics of the molecular component of PDRs with mechanical heating. II: line intensities and ratios

M. V. Kazandjian, +4 more
- 27 Mar 2014 - 
TL;DR: In this paper, the effect of mechanical heating (MH) on atomic fine-structure and molecular lines, and their ratios, were investigated and the equilibria were solved for numerically using the optimized version of the Leiden PDR-XDR code.