Zobrazeno 1 - 10
of 57
pro vyhledávání: '"VAN DER WIEL, Matthijs"'
Autor:
Harsono, Daniel, van der Wiel, Matthijs, Bjerkeli, Per, Ramsey, Jon, Calcutt, Hannah, Kristensen, Lars, Jørgensen, Jes
Publikováno v:
A&A 646, A72 (2021)
Physical processes that govern the star and planet formation sequence influence the chemical composition and evolution of protoplanetary disks. To understand the chemical composition of protoplanets, we need to constrain the composition and structure
Externí odkaz:
http://arxiv.org/abs/2010.13722
Autor:
Fallows, Richard A., Forte, Biagio, Astin, Ivan, Allbrook, Tom, Arnold, Alex, Wood, Alan, Dorrian, Gareth, Mevius, Maaijke, Rothkaehl, Hanna, Matyjasiak, Barbara, Krankowski, Andrzej, Anderson, James M., Asgekar, Ashish, Avruch, I. Max, Bentum, Mark, Bisi, Mario M., Butcher, Harvey R., Ciardi, Benedetta, Dabrowski, Bartosz, Damstra, Sieds, de Gasperin, Francesco, Duscha, Sven, Eislöffel, Jochen, Franzen, Thomas M. O., Garrett, Michael A., Grie\b{eta}meier, Jean-Matthias, Gunst, André W., Hoeft, Matthias, Hörandel, Jörg R., Iacobelli, Marco, Intema, Huib T., Koopmans, Leon V. E., Maat, Peter, Mann, Gottfried, Nelles, Anna, Paas, Harm, Pandey, Vishambhar N., Reich, Wolfgang, Rowlinson, Antonia, Ruiter, Mark, Schwarz, Dominik J., Serylak, Maciej, Shulevski, Aleksander, Smirnov, Oleg M., Soida, Marian, Steinmetz, Matthias, Thoudam, Satyendra, Toribio, M. Carmen, van Ardenne, Arnold, van Bemmel, Ilse M., van der Wiel, Matthijs H. D., van Haarlem, Michiel P., Vermeulen, René C., Vocks, Christian, Wijers, Ralph A. M. J., Wucknitz, Olaf, Zarka, Philippe, Zucca, Pietro
This paper presents the results from one of the first observations of ionospheric scintillation taken using the Low-Frequency Array (LOFAR). The observation was of the strong natural radio source Cas A, taken overnight on 18-19 August 2013, and exhib
Externí odkaz:
http://arxiv.org/abs/2003.04013
Autor:
Bjerkeli, Per, Ramsey, Jon P., Harsono, Daniel, Calcutt, Hannah, Kristensen, Lars E., van der Wiel, Matthijs H. D., Jørgensen, Jes K., Muller, Sébastien, Persson, Magnus V.
Publikováno v:
A&A 631, A64 (2019)
Context. The relationship between outflow launching and formation of accretion disks around young stellar objects is still not entirely understood, which is why spectrally and spatially resolved observations are needed. Recently, the Atacama Large Mi
Externí odkaz:
http://arxiv.org/abs/1909.05178
Autor:
Harsono, Daniel, Bjerkeli, Per, van der Wiel, Matthijs H. D., Ramsey, Jon P., Maud, Luke T., Kristensen, Lars E., Jørgensen, Jes K.
The growth of dust grains in protoplanetary disks is a necessary first step towards planet formation. This growth has been inferred via observations of thermal dust emission towards mature protoplanetary systems (age >2 million years) with masses tha
Externí odkaz:
http://arxiv.org/abs/1806.09649
Autor:
Murillo, Nadia M., van Dishoeck, Ewine F., van der Wiel, Matthijs H. D., Jørgensen, Jes K., Drozdovskaya, Maria N., Calcutt, Hannah, Harsono, Daniel
Publikováno v:
A&A 617, A120 (2018)
Much attention has been placed on the dust distribution in protostellar envelopes, but there are still many unanswered questions regarding the structure of the gas. We aim to start identifying the factors that determine the chemical structure of prot
Externí odkaz:
http://arxiv.org/abs/1805.05205
Autor:
Drozdovskaya, Maria N., van Dishoeck, Ewine F., Jørgensen, Jes K., Calmonte, Ursina, van der Wiel, Matthijs H. D., Coutens, Audrey, Calcutt, Hannah, Müller, Holger S. P., Bjerkeli, Per, Persson, Magnus V., Wampfler, Susanne F., Altwegg, Kathrin
Publikováno v:
Mon. Not. R. Astron. Soc. 476 (2018) 4949-4964
The evolutionary past of our Solar System can be pieced together by comparing analogous low-mass protostars with remnants of our Protosolar Nebula - comets. Sulphur-bearing molecules may be unique tracers of the joint evolution of the volatile and re
Externí odkaz:
http://arxiv.org/abs/1802.02977
Autor:
Ribas, Álvaro, Espaillat, Catherine C., Macías, Enrique, Bouy, Hervé, Andrews, Sean, Calvet, Nuria, Naylor, David A., Riviere-Marichalar, Pablo, van der Wiel, Matthijs H. D., Wilner, David
Far-infrared and (sub)millimeter fluxes can be used to study dust in protoplanetary disks, the building blocks of planets. Here, we combine observations from the Herschel Space Observatory with ancillary data of 284 protoplanetary disks in the Taurus
Externí odkaz:
http://arxiv.org/abs/1710.08426
Autor:
Bjerkeli, Per, van der Wiel, Matthijs H. D., Harsono, Daniel, Ramsey, Jon P., Jørgensen, Jes K.
Publikováno v:
Nature 540, 406-409 (2016)
Young stars are associated with prominent outflows of molecular gas. The ejection of gas via these outflows is believed to remove angular momentum from the protostellar system, thus permitting young stars to grow by accretion of material from the pro
Externí odkaz:
http://arxiv.org/abs/1612.05148
Autor:
Makiwa, Gibion, Naylor, David A., van der Wiel, Matthijs, Ward-Thompson, Derek, Kirk, Jason, Eyres, Stewart, Abergel, Alain, Koehler, Melanie
Dust grains play a key role in the physics of star-forming regions, even though they constitute only $\sim$1 % of the mass of the interstellar medium. The derivation of accurate dust parameters such as temperature ($T_{dust}$), emissivity spectral in
Externí odkaz:
http://arxiv.org/abs/1602.06927
Autor:
Kazmierczak-Barthel, Maja, Semenov, Dimitri, van der Tak, Floris, Chavarría, Luis, van der Wiel, Matthijs
Publikováno v:
A&A 574, A71 (2015)
We aim to understand the rich chemical composition of AFGL 2591, a prototypical isolated high-mass star-forming region. Based on HIFI and JCMT data, the molecular abundances of species found in the protostellar envelope of AFGL 2591 were derived with
Externí odkaz:
http://arxiv.org/abs/1412.5763