Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Tychoniec Łukasz"'
Autor:
Gouellec, Valentin J. M. Le, Lew, Ben W. P., Greene, Thomas P., Johnstone, Doug, Gusdorf, Antoine, Francis, Logan, DeWitt, Curtis, Meyer, Michael, Tychoniec, Łukasz, van Dishoeck, Ewine F., Barsony, Mary, Hodapp, Klaus W., Robberto, Massimo
The near-infrared (NIR) emission of the youngest protostars still needs to be characterized to better understand the evolution of their accretion and ejection activity. We analyze James Webb Space Telescope NIRSpec 1.7 -- 5.3 $\mu$m observations of t
Externí odkaz:
http://arxiv.org/abs/2410.11095
Autor:
Tyagi, Himanshu, P., Manoj, Narang, Mayank, Megeath, S T., Rocha, Will Robson M., Brunken, Nashanty, Rubinstein, Adam E., Gutermuth, Robert A., Evans, Neal J., van Dishoeck, Ewine, Federman, Sam, Watson, Dan M., Neufeld, David A., Anglada, Guillem, Beuther, Henrik, Garatti, Alessio Caratti o, Looney, Leslie W., Nazari, Pooneh, Osorio, Mayra, Stanke, Thomas, Yang, Yao-Lun, Bourke, Tyler L., Fischer, William J., Furlan, Elise, Green, Joel D., Habel, Nolan, Klaassen, Pamela, Karnath, Nicole, Linz, Hendrik, Muzzerolle, James, Tobin, John J., Atnagulov, Prabhani, Rahatgaonkar, Rohan, Sheehan, Patrick D., Slavicinska, Katerina, Stutz, Amelia M., Tychoniec, Łukasz, Wolk, Scott J.
The composition of protoplanetary disks, and hence the initial conditions of planet formation, may be strongly influenced by the infall and thermal processing of material during the protostellar phase. Composition of dust and ice in protostellar enve
Externí odkaz:
http://arxiv.org/abs/2410.06697
Autor:
Slavicinska, Katerina, Boogert, Adwin, Tychoniec, Łukasz, van Dishoeck, Ewine F., van Gelder, Martijn L., Santos, Julia C., Klaassen, Pamela D., Kavanagh, Patrick J., Chuang, Ko-Ju
Sulfur is depleted with respect to its cosmic standard abundance in dense star-forming regions. It has been suggested that this depletion is caused by the freeze-out of sulfur on interstellar dust grains, but the observed abundances and upper limits
Externí odkaz:
http://arxiv.org/abs/2410.02860
In this chapter, we will cover how stars form from the stellar nurseries that are giant molecular clouds. We will first review the physical processes that compete to regulate star formation. We then review star formation in turbulent, magnetized mole
Externí odkaz:
http://arxiv.org/abs/2409.03371
Autor:
Barsony, Mary, Ressler, Michael E., Gouellec, Valentin J. M. Le, Tychoniec, Łukasz, van Gelder, Martijn L.
We report the discovery of jets emanating from pre-main-sequence objects exclusively at mid-infrared wavelengths, enabled by the superb sensitivity of JWST's Mid-InfraRed Medium-Resolution Spectrometer (MIRI MRS) instrument. These jets are observed o
Externí odkaz:
http://arxiv.org/abs/2409.03016
Autor:
Assani, Korash, Harsono, Daniel, Ramsey, Jon, Li, Zhi-Yun, Bjerkeli, Per, Pontoppidan, Klaus, Tychoniec, Łukasz, Calcutt, Hannah, Kristensen, Lars, Jorgensen, Jes, Plunkett, Adele, van Gelder, Martijn, Francis, Logan
Publikováno v:
A&A 688, A26 (2024)
(abridged) Protostellar outflows exhibit large variations in their structure depending on the observed gas emission. This study analyzes the atomic jet and molecular outflow in the Class I protostar, TMC1A to characterize morphology and identify prev
Externí odkaz:
http://arxiv.org/abs/2404.18334
Autor:
Slavicinska, Katerina, van Dishoeck, Ewine F., Tychoniec, Łukasz, Nazari, Pooneh, Rubinstein, Adam E., Gutermuth, Robert, Tyagi, Himanshu, Chen, Yuan, Brunken, Nashanty G. C., Rocha, Will R. M., Manoj, P., Narang, Mayank, Megeath, S. Thomas, Yang, Yao-Lun, Looney, Leslie W., Tobin, John J., Beuther, Henrik, Bourke, Tyler L., Linnartz, Harold, Federman, Samuel, Watson, Dan M., Linz, Hendrik
Publikováno v:
A&A 688, A29 (2024)
This work aims to utilize the increased sensitivity and resolution of the JWST to quantify the HDO/H$_{2}$O ratio in ices toward young stellar objects (YSOs) and to determine if the HDO/H$_{2}$O ratios measured in the gas phase toward massive YSOs (M
Externí odkaz:
http://arxiv.org/abs/2404.15399
Autor:
Neufeld, David A., Manoj, P., Tyagi, Himanshu, Narang, Mayank, Watson, Dan M., Megeath, S. Thomas, Van Dishoeck, Ewine F., Gutermuth, Robert A., Stanke, Thomas, Yang, Yao-Lun, Rubinstein, Adam E., Anglada, Guillem, Beuther, Henrik, Garatti, Alessio Caratti o, Evans II, Neal J., Federman, Samuel, Fischer, William J., Green, Joel, Klaassen, Pamela, Looney, Leslie W., Osorio, Mayra, Nazari, Pooneh, Tobin, John J., Tychoniec, Lukasz, Wolk, Scott
Using the MIRI/MRS spectrometer on JWST, we have detected pure rotational, suprathermal OH emissions from the vicinity of the intermediate-mass protostar HOPS 370 (OMC2/FIR3). These emissions are observed from shocked knots in a jet/outflow, and orig
Externí odkaz:
http://arxiv.org/abs/2404.07299
Autor:
Delabrosse, Valentin, Dougados, Catherine, Cabrit, Sylvie, Tabone, Benoit, Tychoniec, Lukasz, Ray, Tom, Podio, Linda, McClure, Melissa
Publikováno v:
A&A 688, A173 (2024)
The origin and impact of outflows on proto-planetary disks and planet formation are key open questions. DG Tau B, a Class I protostar with a structured disk and a striking rotating conical CO outflow, recently identified with ALMA as one of the best
Externí odkaz:
http://arxiv.org/abs/2403.19400
Autor:
Tychoniec, Łukasz, van Gelder, Martijn L., van Dishoeck, Ewine F., Francis, Logan, Rocha, Will R. M., Garatti, Alessio Caratti o, Beuther, Henrik, Gieser, Caroline, Justtanont, Kay, Linnartz, Harold, Gouellec, Valentin J. M. Le, Perotti, Giulia, Devaraj, R., Tabone, Benoît, Ray, Thomas P., Brunken, Nashanty G. C., Chen, Yuan, Kavanagh, Patrick J., Klaassen, Pamela, Slavicinska, Katerina, Güdel, Manuel, Östlin, Goran
Publikováno v:
A&A 687, A36 (2024)
Accretion and ejection sets the outcome of the star and planet formation process. The mid-infrared wavelength range offers key tracers of those processes that were difficult to detect and spatially resolve in protostars until now. We aim to character
Externí odkaz:
http://arxiv.org/abs/2402.04343