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Análise espectroscópica dos processos de acreção/ejeção de material circunstelar em estrelas Ae/Be de Herbig
(Universidade Federal de Minas GeraisBrasilICX - DEPARTAMENTO DE FÍSICAPrograma de Pós-Graduação em FísicaUFMG, 2020-04-15)
Espectroscopia de estrelas Ae/Be de Herbig
(Universidade Federal do Rio de JaneiroBrasilObservatório do ValongoUFRJ, 2023)
Estudos de eventos de acresção de matéria em estrelas pré-sequência principal Ae/Be de Herbig
(Universidade Federal de Minas GeraisUFMG, 2004-05-27)
Herbig Ae/Be objects are pre-main sequence stars with intermediate mass (2 to 10 M) that show high spectroscopic and photometric variability. Most of this variability is due to the circunstellar environment, in the form ...
Particle acceleration in the Herbig–Haro objects HH 80 and HH 81
(Wiley Blackwell Publishing, Inc, 2019-02)
We present an analysis of radio (Karl G. Jansky Very Large Array (VLA)), optical (HST), and X-ray (Chandra and XMM-Newton) observations and archival data of the Herbig-Haro objects HH 80 and HH 81 in the context of jet-cloud ...
The exceptional Herbig Ae star HD 101412: The first detection of resolved magnetically split lines and the presence of chemical spots in a Herbig star
(Wiley Vch Verlag, 2010-04)
In our previous search for magnetic fields in Herbig Ae stars, we pointed out that HD 101412 possesses the strongest magnetic field among the Herbig Ae stars and hence is of special interest for follow-up studies of ...
Observing the linked depletion of dust and CO gas at 0.1–10 au in disks of intermediate-mass stars
(EDP Sciences, 2018)
We report on the discovery of correlations between dust and CO gas tracers of the 0.1–10 au region in planet-forming disks around
young intermediate-mass stars. The abundance of refractory elements on stellar photospheres ...
Measuring the mass accretion rates of Herbig Ae/Be stars with X-shooter
(Wiley, 2012-01)
We present the results of our observations of eight magnetic Herbig Ae/Be stars obtained with the X-shooter spectrograph mounted on UT2 at the VLT. X-shooter provides a simultaneous, medium-resolution and high-sensitivity ...
An 80 au cavity in the disk around HD 34282
(EDP Sciences, 2017)
Context. Large cavities in disks are important testing grounds for the mechanisms proposed to drive disk evolution and dispersion, such as dynamical clearing by planets and photoevaporation. Aims. We aim to resolve the ...