Zobrazeno 1 - 10
of 1 259
pro vyhledávání: '"Casassus P"'
Autor:
Xie, Chen, Xie, Chengyan, Ren, Bin B., Benisty, Myriam, Ginski, Christian, Fang, Taotao, Casassus, Simon, Bae, Jaehan, Facchini, Stefano, Ménard, François, van Holstein, Rob G.
In the early stages of planetary system formation, young exoplanets gravitationally interact with their surrounding environments and leave observable signatures on protoplanetary disks. Among these structures, a pair of nearly symmetric spiral arms c
Externí odkaz:
http://arxiv.org/abs/2412.14402
Autor:
Liu, Hauyu Baobab, Casassus, Simon, Dong, Ruobing, Doi, Kiyoaki, Hashimoto, Jun, Muto, Takayuki
PDS~70 is a protoplanetary system that hosts two actively accreting gas giants, namely PDS~70b and PDS~70c. The system has a $\sim$60--100 au dusty ring that has been resolved by ALMA, along with circumplanetary disks around the two gas giants. Here
Externí odkaz:
http://arxiv.org/abs/2406.19843
Autor:
Arce-Tord, Carla, Casassus, Simon, Dent, William R. F., Pérez, Sebastián, Cárcamo, Miguel, Weber, Philipp, Engler, Natalia, Cieza, Lucas A., Hales, Antonio, Zurlo, Alice, Marino, Sebastian
Warps have often been used to explain disc properties, but well characterised examples are important due to their role in disc evolution. Scattered light images of discs with central gaps have revealed sharp warps, such that the outer rings are shado
Externí odkaz:
http://arxiv.org/abs/2309.10735
Autor:
Casassus, Simon, Cieza, Lucas, Cárcamo, Miguel, Ribas, Álvaro, Christiaens, Valentin, Rodríguez-Jiménez, Abigali, Arce-Tord, Carla, Bhowmik, Trisha, Chavan, Prachi, González-Ruilova, Camilo, Martínez-Brunner, Rafael, Guidotti, Valeria, Leiva, Mauricio
Environmental effects, such as stellar fly-bys and external irradiation, are thought to affect the evolution of protoplanetary disks in clustered star formation. Previous ALMA images at 225 GHz of the ISO-Oph 2 binary revealed a peculiar morphology i
Externí odkaz:
http://arxiv.org/abs/2307.07416
Autor:
Nogueira, Pedro Henrique, Zurlo, Alice, Pérez, Sebastián, González-Ruilova, Camilo, Cieza, Lucas A., Hales, Antonio, Bhowmik, Trisha, Ruíz-Rodríguez, Dary A., Principe, David A., Herczeg, Gregory J., Williams, Jonathan P., Cuadra, Jorge, Montesinos, Matías, Cuello, Nicolás, Chavan, Prachi, Casassus, Simon, Zhu, Zhaohuan, Goicovic, Felipe G.
Episodic accretion is a low-mass pre-main sequence phenomenon characterized by sudden outbursts of enhanced accretion. These objects are classified into two: protostars with elevated levels of accretion that lasts for decades or more, called FUors, a
Externí odkaz:
http://arxiv.org/abs/2305.15647
Publikováno v:
MNRAS, Volume 522, Issue 2, June 2023, Pages 2611-2627
The $^{12}$CO rotational lines in protoplanetary discs are good tracers of the total spatial extension of the gas component, and potentially planet-disc interactions. We present ALMA long baseline observations of the $^{12}$CO(2-1) line of ten protop
Externí odkaz:
http://arxiv.org/abs/2304.15002
Autor:
Ruíz-Rodríguez, Dary A., Cieza, Lucas A., Casassus, Simon, Almendros-Abad, Victor, Jofré, Paula, Muzic, Koraljka, Ramirez, Karla Peña, Batalla-Falcon, Grace, Dunham, Michael M., González-Ruilova, Camilo, Hales, Antonio, Humphreys, Elizabeth, Nogueira, Pedro H., Paladini, Claudia, Tobin, John, Williams, Jonathan P., Zurlo, Alice
We report the serendipitous discovery of an elliptical shell of CO associated with the faint stellar object SSTc2d J163134.1-24006 as part of the "Ophiuchus Disk Survey Employing ALMA" (ODISEA), a project aiming to study the entire population of prot
Externí odkaz:
http://arxiv.org/abs/2209.00759
The interpretation of molecular-line data in terms of hydro dynamical simulations of planet-disk interactions fosters new hopes for the indirect detection of protoplanets. In a model-independent approach, embedded protoplanets should be found at the
Externí odkaz:
http://arxiv.org/abs/2206.03236
Autor:
Casassus, Simon, Carcamo, Miguel
The compact mm-wavelength signal in the central cavity of the PDS70 disc, revealed by deep ALMA observations, is aligned with unresolved Halpha emission, and is thought to stem from a circum-planetary disc (CPD) around PDS70c. We revisit the availabl
Externí odkaz:
http://arxiv.org/abs/2204.08589
Autor:
Pinte, Christophe, Teague, Richard, Flaherty, Kevin, Hall, Cassandra, Facchini, Stefano, Casassus, Simon
The past 5 years have dramatically changed our view of the disks of gas and dust around young stars. Observations with the Atacama Large Millimeter/submillimeter Array (ALMA) and extreme adaptive optics systems have revealed that disks are dynamical
Externí odkaz:
http://arxiv.org/abs/2203.09528