Zobrazeno 1 - 10
of 390
pro vyhledávání: '"Fernández-López, Manuel"'
Autor:
Lin, Zhe-Yu Daniel, Li, Zhi-Yun, Yang, Haifeng, Looney, Leslie W., Stephens, Ian W., Fernández-López, Manuel, Harrison, Rachel E.
Recent (sub)millimeter polarization observations of protoplanetary disks reveal toroidally aligned, effectively prolate dust grains large enough (at least ~100 $\mu$m) to efficiently scatter millimeter light. The alignment mechanism for these grains
Externí odkaz:
http://arxiv.org/abs/2407.10025
Autor:
Galván-Madrid, Roberto, Díaz-González, Daniel J., Motte, Frédérique, Ginsburg, Adam, Cunningham, Nichol, Menten, Karl M., Armante, Mélanie, Bonfand, Mélisse, Braine, Jonathan, Csengeri, Timea, Dell'Ova, Pierre, Louvet, Fabien, Nony, Thomas, Rivera-Soto, Rudy, Sanhueza, Patricio, Stutz, Amelia M., Wyrowski, Friedrich, Álvarez-Gutiérrez, Rodrigo H., Baug, Tapas, Bontemps, Sylvain, Bronfman, Leonardo, Fernández-López, Manuel, Gusdorf, Antoine, Koley, Atanu, Liu, Hong-Li, Salinas, Javiera, Towner, Allison P. M., Whitworth, Anthony P.
We use the H$41\alpha$ recombination line to create templates of the millimeter free-free emission in the ALMA-IMF continuum maps, which allows to separate it from dust emission. This method complements spectral-index information and extrapolation fr
Externí odkaz:
http://arxiv.org/abs/2407.07359
Autor:
Harrison, Rachel E., Lin, Zhe-Yu Daniel, Looney, Leslie W., Li, Zhi-Yun, Yang, Haifeng, Stephens, Ian, Fernández-López, Manuel
Millimeter and sub-millimeter observations of continuum linear dust polarization provide insight into dust grain growth in protoplanetary disks, which are the progenitors of planetary systems. We present the results of the first survey of dust polari
Externí odkaz:
http://arxiv.org/abs/2404.10217
Autor:
Yang, Haifeng, Fernández-López, Manuel, Li, Zhi-Yun, Stephens, Ian W., Looney, Leslie W., Lin, Zhe-Yu Daniel, Harrison, Rachel
We investigate the crescent-shaped dust trap in the transition disk, Oph IRS 48, using well-resolved (sub)millimeter polarimetric observations at ALMA Band 7 (870 $\mu$m). The dust polarization map reveals patterns consistent with dust scattering-ind
Externí odkaz:
http://arxiv.org/abs/2402.12662
Autor:
Huang, Bo, Girart, Josep M., Stephens, Ian W., Fernandez-Lopez, Manuel, Arce, Hector G., Carpenter, John M., Cortes, Paulo, Cox, Erin G., Friesen, Rachel, Gouellec, Valentin J. M. Le, Hull, Charles L. H., Karnath, Nicole, Kwon, Woojin, Li, Zhi-Yun, Looney, Leslie W., Megeath, Tom, Myers, Philip C., Murillo, Nadia M., Pineda, Jaime E., Sadavoy, Sarah, Sanchez-Monge, Alvaro, Sanhueza, Patricio, Tobin, John J., Zhang, Qizhou, Jackson, James M., Segura-Cox, Dominique
Publikováno v:
ApJL, 963:L31, 2024
We present 870 um polarimetric observations toward 61 protostars in the Orion molecular clouds, with ~400 au (1") resolution using the Atacama Large Millimeter/submillimeter Array. We successfully detect dust polarization and outflow emission in 56 p
Externí odkaz:
http://arxiv.org/abs/2402.07267
Autor:
Stephens, Ian W., Lin, Zhe-Yu Daniel, Fernandez-Lopez, Manuel, Li, Zhi-Yun, Looney, Leslie W., Yang, Haifeng, Harrison, Rachel, Kataoka, Akimasa, Carrasco-Gonzalez, Carlos, Okuzumi, Satoshi, Tazaki, Ryo
Polarized (sub)millimeter emission from dust grains in circumstellar disks was initially thought to be due to grains aligned with the magnetic field. However, higher resolution multi-wavelength observations along with improved models found that this
Externí odkaz:
http://arxiv.org/abs/2311.08452
Autor:
Díaz-González, Daniel J., Galván-Madrid, Roberto, Ginsburg, Adam, Motte, Frédérique, Dell'Ova, Pierre, Kurtz, Stan, Cunningham, Nichol, Stutz, Amelia M., Louvet, Fabien, Csengeri, Timea, Fernández-López, Manuel, Sanhueza, Patricio, Nony, Thomas, Rivera-Soto, Rudy, Álvarez-Gutiérrez, Rodrigo H., Armante, Melanie, Bonfand, Melisse, Bontemps, Sylvain, Gusdorf, Antoine, Liu, Hong-Li
We present the combination of ALMA-IMF and single-dish continuum images from the Mustang-2 Galactic Plane Survey (MGPS90) at 3 millimeters and the Bolocam Galactic Plane Survey (BGPS) at 1 millimeter. Six and ten out of the fiffteen ALMA-IMF fields a
Externí odkaz:
http://arxiv.org/abs/2310.13872
Autor:
Zapata, Luis A., Fernández-López, Manuel, Leurini, Silvia, Ccolque, Estrella Guzmán, Rodriguez, Luis F., Palau, Aina, Menten, Karl M., Wyrowski, Friedrich
In the last years there has been a substantial increase in the number of the reported massive and luminous star-forming regions with related explosive outflows thanks to the superb sensitivity and angular resolution provided by the new radio, infrare
Externí odkaz:
http://arxiv.org/abs/2309.11386
Autor:
Lin, Zhe-Yu Daniel, Li, Zhi-Yun, Stephens, Ian W., Fernández-López, Manuel, Carrasco-González, Carlos, Chandler, Claire J., Pasetto, Alice, Looney, Leslie W., Yang, Haifeng, Harrison, Rachel E., Sadavoy, Sarah I., Henning, Thomas, Hughes, A. Meredith, Kataoka, Akimasa, Kwon, Woojin, Muto, Takayuki, Segura-Cox, Dominique
Polarization is a unique tool to study the properties of dust grains of protoplanetary disks and detail the initial conditions of planet formation. Polarization around HL Tau was previously imaged using the Atacama Large Millimeter/submillimeter Arra
Externí odkaz:
http://arxiv.org/abs/2309.10055
Autor:
Yang, Haifeng, Fernandez-Lopez, Manuel, Li, Zhi-Yun, Stephens, Ian W., Looney, Leslie W., Lin, Zhe-Yu Daniel, Harrison, Rachel
Crescent-shaped structures in transition disks hold the key to studying the putative companions to the central stars. The dust dynamics, especially that of different grain sizes, is important to understanding the role of pressure bumps in planet form
Externí odkaz:
http://arxiv.org/abs/2304.02937