Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Oudmaijer, René D"'
Be stars make up almost 20% of the B star population, and are rapidly rotating stars surrounded by a disc; however the origin of this rotation remains unclear. Mass transfer within close binaries provides the leading hypothesis, with previous detecti
Externí odkaz:
http://arxiv.org/abs/2310.05653
Autor:
Vioque, Miguel, Cavieres, Manuel, González, Michelangelo Pantaleoni, Ribas, Álvaro, Oudmaijer, René D., Mendigutía, Ignacio, Kilian, Lena, Cánovas, Héctor, Kuhn, Michael A.
We have selected 337 intermediate and high-mass YSOs ($1.5$ to $20$ M$_{\odot}$) well-characterised with spectroscopy. By means of the clustering algorithm HDBSCAN, we study their clustering and association properties in the Gaia DR3 catalogue as a f
Externí odkaz:
http://arxiv.org/abs/2309.00678
Herbig Ae/Be stars are young contracting stars on the radiative track in the HR diagram on their way to the main sequence. These stars provide a valuable link between high and low mass stars. Here we review the progress that has been made in our unde
Externí odkaz:
http://arxiv.org/abs/2301.01165
This paper presents the first census of Galactic post-Asymptotic Giant Branch stars in the HR diagram. We combined Gaia DR3 parallax-based distances with extinction corrected integrated fluxes, and derived luminosities for a sample of 185 stars that
Externí odkaz:
http://arxiv.org/abs/2208.02832
Autor:
Vioque, Miguel, Oudmaijer, René D., Wichittanakom, Chumpon, Mendigutía, Ignacio, Baines, Deborah, Panić, Olja, Iglesias, Daniela, Miley, James, Pérez-Martínez, Ricardo
Publikováno v:
ApJ, 2022, 930, 1, 39
We present optical spectroscopy observations of 145 high-mass pre-main sequence candidates from the catalogue of Vioque et al. (2020). From these, we provide evidence for the Herbig nature of 128 sources. This increases the number of known objects of
Externí odkaz:
http://arxiv.org/abs/2202.01234
Autor:
Oudmaijer, René D., Koumpia, Evgenia
This contribution focuses on a rare example of the class of post-Red Supergiants, IRAS 17163-3907, the central star of the Fried Egg nebula. In particular, we discuss some of our recently published results in detail. The inner parts of the circumstel
Externí odkaz:
http://arxiv.org/abs/2201.08849
Autor:
Wisniewski, John P., Berdyugin, Andrei V., Berdyugina, Svetlana V., Danchi, William C., Dong, Ruobing, Oudmaijer, Rene D., Airapetian, Vladimir S., Brittain, Sean D., Gayley, Ken, Ignace, Richard, Langlois, Maud, Lawson, Kellen D., Lomax, Jamie R., Tamura, Motohide, Vink, Jorick S., Scowen, Paul A.
Polstar is a proposed NASA MIDEX mission that would feature a high resolution UV spectropolarimeter capable of measure all four Stokes parameters onboard a 60cm telescope. The mission would pioneer the field of time-domain UV spectropolarimetry. Time
Externí odkaz:
http://arxiv.org/abs/2111.06891
Autor:
González, Marta, Joncour, Isabelle, Buckner, Anne S. M., Khorrami, Zeinhab, Moraux, Estelle, Lumsden, Stuart L., Clark, Paul, Oudmaijer, René D., Blanco, José Manuel, de la Calle, Ignacio, Herrera-Fernandez, José María, Salgado, Jesús J., Valero-Martín, Luis, Torres, Zoe, Hacar, Álvaro, Ulla, Ana
Publikováno v:
A&A 647, A14 (2021)
The spatial and dynamical structure of star-forming regions can help provide insights on stellar formation patterns. The amount of data from current and upcoming surveys calls for robust and objective procedures to detect structure, so the results ca
Externí odkaz:
http://arxiv.org/abs/2011.10574
Autor:
Buckner, Anne S. M., Khorrami, Zeinab, Gonzalez, Marta, Lumsden, Stuart L., Moraux, Estelle, Oudmaijer, Rene D., Clark, Paul, Joncour, Isabelle, Blanco, Jose Manuel, de la Calle, Ignacio, Hacar, Alvaro, Herrera-Fernandez, Jose M., Motte, Frederique, Salgado, Jesus, Valero-Martin, Luis
Publikováno v:
A&A 636, A80 (2020)
Aims. To demonstrate that `INDICATE' is a powerful spatial analysis tool which when combined with kinematic data from Gaia DR2 can be used to robustly probe star formation history. Methods. We compared the dynamic & spatial distributions of young ste
Externí odkaz:
http://arxiv.org/abs/2002.12673
Autor:
Khorrami, Zeinab, Khalaj, Pouria, Buckner, Anne S. M., Clark, Paul C., Moraux, Estelle, Lumsden, Stuart, Joncour, Isabelle, Oudmaijer, Rene D., de la Calle, Ignacio, Herrera-Fernandez, Jose M., Motte, Frederique, Blanco, Jose Manuel, Valero-Martin, Luis
We introduce our new code MYOSOTIS (Make Your Own Synthetic ObservaTIonS) which is designed to produce synthetic observations from simulated clusters. The code can synthesise observations from both ground- and spaced-based observatories, for a range
Externí odkaz:
http://arxiv.org/abs/1902.05525