Results 81 to 90 of about 4,213,215 (189)

PROJECT-J: The Shocking H2 Outflow from HH 46

The Astrophysical Journal
We analyze the H _2 emission observed in the HH 46 Class I system as part of PROtostellar JEts Cradle Tested with JWST (PROJECT-J), to investigate the origin and excitation of the warm molecular outflow. We used NIRSpec and MIRI spectral maps (1.6–27.9 μ
Maria Gabriela Navarro, Brunella Nisini, Teresa Giannini, Patrick J. Kavanagh, Alessio Caratti o Garatti, Simone Antoniucci, Hector G. Arce, Francesca Bacciotti, Sylvie Cabrit, Deirdre Coffey, Catherine Dougados, Jochen Eislöffel, Patrick Hartigan, Alberto Noriega- Crespo, Linda Podio, Ewine F. van Dishoeck, Emma T. Whelan   +16 more
doaj   +1 more source

Stellar population gradients in galaxy discs from the CALIFA survey : the influence of bars [PDF]

, 2014
We acknowledge financial support from the research projects under grants AYA2010-21887-C04-03, AYA2010-21322-C03-03 and AYA2010-15081 by the Spanish Ministerio de Ciencia e Innovación.While studies of gas-phase metallicity gradients in disc galaxies are ...
Wisotzki, L., S. Zibetti, Márquez, I., D. Mast, Papaderos, P., R. García Benito, Rosales-Ortega, F.F., Sánchez, S. F., I. Pérez, Sánchez, S.F., J. Falcón-Barroso, Ruiz Lara, T., P. Sánchez-Blázquez, R. Cid Fernandes, L. Wisotzki, G. van de Ven, de Lorenzo Cáceres, A., P. Papaderos, C. Catalán-Torrecilla, M. Mollá, González Delgado, R., Mendoza, M. A., Aguerri, J.A.L., F. F. Rosales-Ortega, Mendez Abreu, Jairo, Ruiz-Lara, T., Cid Fernandes, R., A. de Lorenzo-Caceres, J. Méndez-Abreu, Zibetti, S., T. Ruiz-Lara, Mendoza, M.A., Iglesias Paramo, Jorge, B. Husemann, Sánchez Blázquez, Patricia, Falcón Barroso, J., Bland-Hawthorn, J., M. A. Mendoza, B. Jungwiert, Catalán Torrecilla, Cristina, Mollá, M., A. Galazzi, C. J. Walcher, A. Gil de Paz, Rosales Ortega, F. F., Mast, D., Marino, Raffaella Anna, Husemann, B., De Amorim, A., J. A. L. Aguerri, Aguerri, J. A. L., Gil De Paz, Armando, Marino, R.A., J. Bland-Hawthorn, A. de Amorim, Pérez, I., R. A. Marino, Walcher, C. J., Méndez Abreu, J., I. Márquez, Walcher, C.J., Galazzi, A., Iglesias-Páramo, J., Jungwiert, B., S. F. Sánchez, R. González Delgado, De Lorenzo-Caceres Rodriguez, Adriana, Catalán-Torrecilla, C., Gil De Paz, A., Van De Ven, G., Falcón-Barroso, J., García Benito, R., Sánchez-Blázquez, P., Jorge Iglesias-Páramo   +73 more
core   +1 more source

Mapping Active Star-formation in Serpens and the Aquila Rift

The Astronomical Journal
We report the results of a high-sensitivity survey for Herbig–Haro (HH) outflows in the Serpens–Aquila Rift using the DECam instrument on the Blanco 4 meter telescope. We have detected 88 new HH objects, more than tripling the total known in this region.
T. A. Rector, R. M. P. Kerr, L. Prato, R. Y. Shuping, C. Bender, T. L. Esplin, S. E. Abhilash   +6 more
doaj   +1 more source

The Disk Orientations of Perseus Protostellar Multiples at ∼8 au Resolution

The Astrophysical Journal
We present a statistical characterization of circumstellar disk orientations toward 12 protostellar multiple systems in the Perseus molecular cloud using the Atacama Large Millimeter/submillimeter Array at Band 6 (1.3 mm) with a resolution of ∼25 mas (∼8
Nickalas K. Reynolds, John J. Tobin, Patrick D. Sheehan, Sarah I. Sadavoy, Leslie W. Looney, Kaitlin M. Kratter, Zhi-Yun Li, Dominique M. Segura-Cox, Nathan A. Kaib   +8 more
doaj   +1 more source

Accretion and Outflow from Young Stellar Disks

, 2010
We aim to monitor T Tauri star disk emission features and jet outflow morphologies to determine how these features vary with disk accretion rate, and how and when the outflow responds to major accretion events. Young stars are surrounded by circumstellar
Bicknell, Geoffrey, McGregor, Peter, Salmeron, Raquel, White, Marc, Beck, Tracy   +4 more
core  

JWST Mid-infrared Spectroscopy Resolves Gas, Dust, and Ice in Young Stellar Objects in the Large Magellanic Cloud

The Astrophysical Journal
In this work, we present spectra of 11 young stellar objects (YSOs) taken with the Mid-Infrared Instrument / Medium Resolution Spectroscopy (MRS) instrument on board the James Webb Space Telescope (JWST).
Omnarayani Nayak, Alec S. Hirschauer, Patrick J. Kavanagh, Margaret Meixner, Laurie Chu, Nolan Habel, Olivia C. Jones, Laura Lenkić, Conor Nally, Megan Reiter, Massimo Robberto, B. A. Sargent   +11 more
doaj   +1 more source

Backlighting young stellar objects in the Central Molecular Zone

Astronomy & Astrophysics
Context. The Central Molecular Zone (CMZ) of the Milky Way contains a substantial reservoir of dense molecular gas, where numerous young stellar objects (YSOs) and dense cloud cores have been identified, offering valuable opportunities to investigate ...
Kang Yewon, An Deokkeun, Han Jiwon, Han Sang-Il, Pyo Dayoung, Adwin Boogert A. C., Kim Kee-Tae, Byun Do-Young   +7 more
doaj   +1 more source

Accretion versus outflow regions around Young Stellar Objects

, 2020
Au cours des dernières décennies, les observations et les simulations numériques nous aident à caractériser les jeunes systèmes étoile-disque. Pour cette question, le but ambitieux de ce projet est pour renforcer la synergie entre les perspectives d ...
Albuquerque, Rachel
core  

SPARCO : a semi-parametric approach for image reconstruction of chromatic objects. Application to young stellar objects

, 2014
11 pages, 11 figures, accepted in A&AInternational audienceContext. The emergence of optical interferometers with three and more telescopes allows image reconstruction of astronomical objects at the milliarcsecond scale.
Lazareff, B., J.-P. Berger, F. Baron, Malbet, F., B. Lazareff, Baron, F., Monnier, J. D., Thiébaut, Éric, F. Soulez, J.-B. Le Bouquin, Soulez, F., Berger, J.-P., F. Malbet, E. Thiébaut, Le Bouquin, J.-B., Kluska, J., J. Kluska, J. D. Monnier   +17 more
core   +1 more source

Ultradeep Imaging of Nearby Dwarf Irregular Galaxies: Young Objects in the Far Outer Disk

The Astronomical Journal
Ultradeep UBVI imaging of 10 nearby (≤7.8 Mpc) noninteracting dwarf irregular galaxies are used to examine their far outer stellar disks. The annulus between 26 mag arcsec ^−2 and 29 mag arcsec ^−2 in the V band is what we define as the far outer disk ...
Deidre A. Hunter, Hong-Xin Zhang, Bruce G. Elmegreen, Ella R. Castelloe, Hannah Michaye Ledford, Ishara Nisley, Ryuga Hatano   +6 more
doaj   +1 more source