197 citations · 564 across the 19 of their papers we have counts for
11 papers · 1 filter
Dust temperature and time-dependent effects in the chemistry of photodissociation regions
Gisela Esplugues, Stephanie Cazaux, Paola Caselli +2
When studying the chemistry of PDRs, time dependence becomes important as visual extinction increases, since certain chemical timescales are comparable to the cloud lifetime. Dust…
Warm dust surface chemistry. H2 and HD formation
W. F. Thi, S. Hocuk, I. Kamp +4
Molecular hydrogen (H2) is the main constituent of the gas in the planet-forming disks that surround many PMS stars. H2 can be incorporated in the atmosphere of the giant planets.…
Warm dust surface chemistry in protoplanetary disks. Formation of phyllosilicates
W. F. Thi, S. Hocuk, I. Kamp +5
The origin of the reservoirs of water on Earth is debated. The Earth's crust may contain at least three times more water than the oceans. This crust water is found in the form of p…
The first frost in the Pipe Nebula
Miwa Goto, J. D. Bailey, Seyit Hocuk +4
Spectroscopic studies of ices in nearby star-forming regions indicate that ice mantles form on dust grains in two distinct steps, starting with polar ice formation (H2O rich) and s…
Parameterizing the interstellar dust temperature
S. Hocuk, L. Szucs, P. Caselli +3
The temperature of interstellar dust particles is of great importance to astronomers. It plays a crucial role in the thermodynamics of interstellar clouds, because of the gas-dust…
Chemical fractionation of deuterium in the protosolar nebula
J. Kalvans, I. Shmeld, J. R. Kalnin +1
Understanding gas-grain chemistry of deuterium in star-forming objects may help to explain their history and present state. We aim to clarify how processes in ices affect the deute…
The role of ices in star-forming clouds
Seyit Hocuk
Ices play a critical role during the evolution of interstellar clouds. Their presence is ubiquitous in the dense molecular medium and their impact is not only limited to chemistry.…
How chemistry influences cloud structure, star formation, and the IMF
S. Hocuk, S. Cazaux, M. Spaans +1
In the earliest phases of star-forming clouds, stable molecular species, such as CO, are important coolants in the gas phase. Depletion of these molecules on dust surfaces affects…
The impact of magnetic fields on the IMF in star-forming clouds near a supermassive black hole
S. Hocuk, D. R. G. Schleicher, M. Spaans +1
Star formation in the centers of galaxies is thought to yield massive stars with a possibly top-heavy stellar mass distribution. It is likely that magnetic fields play a crucial ro…
The impact of X-rays on molecular cloud fragmentation and the IMF
S. Hocuk, M. Spaans
Star formation is regulated through a variety of feedback processes. In this study, we treat feedback by X-rays and discuss its implications. Our aim is to investigate whether star…
The asymmetric radio structure and record jet of giant quasar 4C34.47
S. Hocuk, P. D. Barthel
Giant double-lobed radio source 4C34.47 displays a straight one-sided jet, measuring a record length of 380kpc, in its double-lobed radio structure. Assuming an intrinsically symme…