Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Pooneh Nazari"'
Autor:
David A. Neufeld, P. Manoj, Himanshu Tyagi, Mayank Narang, Dan M. Watson, S. Thomas Megeath, Ewine F. Van Dishoeck, Robert A. Gutermuth, Thomas Stanke, Yao-Lun Yang, Adam E. Rubinstein, Guillem Anglada, Henrik Beuther, Alessio Caratti o Garatti, Neal J. Evans II, Samuel Federman, William J. Fischer, Joel Green, Pamela Klaassen, Leslie W. Looney, Mayra Osorio, Pooneh Nazari, John J. Tobin, Łukasz Tychoniec, Scott Wolk
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 2, p L22 (2024)
Using the MIRI medium-resolution 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/out
Externí odkaz:
https://doaj.org/article/37e0b6f0cf5b4c4cb675aeefe7773f5c
Autor:
Mayank Narang, P. Manoj, Himanshu Tyagi, Dan M. Watson, S. Thomas Megeath, Samuel Federman, Adam E. Rubinstein, Robert Gutermuth, Alessio Caratti o Garatti, Henrik Beuther, Tyler L. Bourke, Ewine F. Van Dishoeck, Neal J. Evans II, Guillem Anglada, Mayra Osorio, Thomas Stanke, James Muzerolle, Leslie W. Looney, Yao-Lun Yang, Pamela Klaassen, Nicole Karnath, Prabhani Atnagulov, Nashanty Brunken, William J. Fischer, Elise Furlan, Joel Green, Nolan Habel, Lee Hartmann, Hendrik Linz, Pooneh Nazari, Riwaj Pokhrel, Rohan Rahatgaonkar, Will R. M. Rocha, Patrick Sheehan, Katerina Slavicinska, Amelia M. Stutz, John J. Tobin, Lukasz Tychoniec, Scott Wolk
Publikováno v:
The Astrophysical Journal Letters, Vol 962, Iss 1, p L16 (2024)
Investigating Protostellar Accretion (IPA) is a JWST Cycle 1 GO program that uses NIRSpec integral field units and MIRI Medium Resolution Spectrograph to obtain 2.9–28 μ m spectral cubes of young, deeply embedded protostars with luminosities of 0.
Externí odkaz:
https://doaj.org/article/dfdbf40e59a34686b7118e4faaf594a3
Autor:
Adam E. Rubinstein, Neal J. Evans II, Himanshu Tyagi, Mayank Narang, Pooneh Nazari, Robert Gutermuth, Samuel Federman, P. Manoj, Joel D. Green, Dan M. Watson, S. Thomas Megeath, Will R. M. Rocha, Nashanty G. C. Brunken, Katerina Slavicinska, Ewine F. van Dishoeck, Henrik Beuther, Tyler L. Bourke, Alessio Caratti o Garatti, Lee Hartmann, Pamela Klaassen, Hendrik Linz, Leslie W. Looney, James Muzerolle, Thomas Stanke, John J. Tobin, Scott J. Wolk, Yao-Lun Yang
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 112 (2024)
We investigate the bright CO fundamental emission in the central regions of five protostars in their primary mass assembly phase using new observations from JWST’s Near-Infrared Spectrograph and Mid-Infrared Instrument. CO line emission images and
Externí odkaz:
https://doaj.org/article/88875499e1f440799610eb981466f866
Autor:
Samuel A. Federman, S. Thomas Megeath, Adam E. Rubinstein, Robert Gutermuth, Mayank Narang, Himanshu Tyagi, P. Manoj, Guillem Anglada, Prabhani Atnagulov, Henrik Beuther, Tyler L. Bourke, Nashanty Brunken, Alessio Caratti o Garatti, Neal J. Evans II, William J. Fischer, Elise Furlan, Joel D. Green, Nolan Habel, Lee Hartmann, Nicole Karnath, Pamela Klaassen, Hendrik Linz, Leslie W. Looney, Mayra Osorio, James Muzerolle Page, Pooneh Nazari, Riwaj Pokhrel, Rohan Rahatgaonkar, Will R. M. Rocha, Patrick Sheehan, Katerina Slavicinska, Thomas Stanke, Amelia M. Stutz, John J. Tobin, Lukasz Tychoniec, Ewine F. Van Dishoeck, Dan M. Watson, Scott Wolk, Yao-Lun Yang
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 41 (2024)
Investigating Protostellar Accretion is a Cycle 1 JWST program using the NIRSpec+MIRI integral field units to obtain 2.9–28 μ m spectral cubes of five young protostars with luminosities of 0.2–10,000 L _⊙ in their primary accretion phase. This
Externí odkaz:
https://doaj.org/article/e06290ca3a554a0981e03c352197ef13
Autor:
Pooneh Nazari, Benoît Tabone, Merel L. R. van ’t Hoff, Jes K. Jørgensen, Ewine F. van Dishoeck
Publikováno v:
The Astrophysical Journal Letters, Vol 951, Iss 2, p L38 (2023)
Earth is deficient in carbon and nitrogen by up to ∼4 orders of magnitude compared with the Sun. Destruction of (carbon- and nitrogen-rich) refractory organics in the high-temperature planet-forming regions could explain this deficiency. Assuming a
Externí odkaz:
https://doaj.org/article/1df633648048450fb658da536beddeed
Autor:
Alex J. Cridland, Giovanni P. Rosotti, Benoît Tabone, Łukasz Tychoniec, Melissa McClure, Pooneh Nazari, Ewine F. van Dishoeck
Publikováno v:
Astronomy & Astrophysics, 662:A90
(Abridged) Recent surveys of young star formation regions have shown that the average Class II object does not have enough dust mass to make the cores of giant planets. Younger Class 0/I objects have enough dust in their embedded disk, which begs the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d483305dad4c93432a55da4af80045d
https://hdl.handle.net/1887/3513591
https://hdl.handle.net/1887/3513591
Autor:
Nashanty G. C. Brunken, Alice S. Booth, Margot Leemker, Pooneh Nazari, Nienke van der Marel, Ewine F. van Dishoeck
Publikováno v:
Astronomy & Astrophysics, 659:A29
The complex organic molecules (COMs) detected in star-forming regions are the precursors of the prebiotic molecules that can lead to the emergence of life. By studying COMs in more evolved protoplanetary disks we can gain a better understanding of ho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af6f4635684434106f8821dc501e7011
http://hdl.handle.net/1887/3514947
http://hdl.handle.net/1887/3514947
Autor:
Yasaman Pourdakheli Hamedani, Malak Hekmati, Pooneh Nazari, Sepideh Tanreh, Kiana Darvishi, Sara Hallajian
Publikováno v:
Journal of Inorganic and Organometallic Polymers and Materials. 28:1001-1010
A simple and ecological pathway for the procurement of palladium nanoparticles (Pd NPs) was developed, applying the non-toxic and sustainable natural extract from Thymbra spicata leaves as the reducing, stabilizing and capping agent. UV–vis spectro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de5fd46c62bddc6eaae4d4fde37497b1
https://doi.org/10.1007/s10904-017-0775-6
https://doi.org/10.1007/s10904-017-0775-6
Planet migration in protoplanetary discs plays an important role in the longer term evolution of planetary systems, yet we currently have no direct observational test to determine if a planet is migrating in its gaseous disc. We explore the formation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b3cea0129531bb5a35d223bd0702c43
http://wrap.warwick.ac.uk/111396/1/WRAP-ring-inside-outside-planet-effect-planet-migration-dust-rings-Meru-2019.pdf
http://wrap.warwick.ac.uk/111396/1/WRAP-ring-inside-outside-planet-effect-planet-migration-dust-rings-Meru-2019.pdf
Autor:
Richard A. Booth, Farzana Meru, Attila Juhasz, Cathie J. Clarke, Marco Tazzari, Pooneh Nazari, Giovanni P. Rosotti
Publikováno v:
Monthly Notices of the RAS (0035-8711), 485(4), 5914-5923
Recent observations show that rings and gaps are ubiquitous in protoplanetary discs. These features are often interpreted as being due to the presence of planets; however, the effect of planetary migration on the observed morphology has not been inve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3078cad5e2ccc5198165f10d152300a
https://www.repository.cam.ac.uk/handle/1810/290937
https://www.repository.cam.ac.uk/handle/1810/290937