423 citations · 3.1k across the 59 of their papers we have counts for
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The star formation process in the Magellanic Clouds
J. M. Oliveira
The Magellanic Clouds offer unique opportunities to study star formation both on the global scales of an interacting system of gas-rich galaxies, as well as on the scales of indivi…
Star Formation in the Eagle Nebula
Joana M. Oliveira
M16 (the Eagle Nebula) is a striking star forming region, with a complex morphology of gas and dust sculpted by the massive stars in NGC 6611. Detailed studies of the famous ``elep…
Molecules and dust production in the Magellanic Clouds
Jacco Th. van Loon, Martin Cohen, Joana M. Oliveira +5
We present ESO/VLT spectra in the 2.9-4.1 micron range for a large sample of infrared stars in the Small Magellanic Cloud (SMC), mainly carbon stars, massive oxygen-rich Asymptotic…
The first 8-13 micron spectra of globular cluster red giants: circumstellar silicate dust grains in 47 Tucanae (NGC 104)
Jacco Th. van Loon, Iain McDonald, Joana M. Oliveira +5
We present 8-13 micron spectra of eight red giants in the globular cluster 47 Tucanae (NGC 104), obtained at the European Southern Observatory 3.6m telescope. These are the first m…
The Lithium Depletion Boundary in NGC 2547 as a test of pre-main-sequence evolutionary models
R. D. Jeffries, J. M. Oliveira
Intermediate resolution spectroscopy from the ESO Very Large Telescope is analysed for 63 photometrically selected low-mass (0.08-0.30 Msun) candidates of the open cluster NGC 2547…
Mid-infrared observations of young stellar objects in the vicinity of sigma Orionis
Joana M. Oliveira, Jacco Th. van Loon
We present new mid-infrared observations of objects in the vicinity of the O-star sigma Orionis, obtained with TIMMI-2 at ESO. By constraining their near- and mid-infrared spectral…
The lithium depletion boundary and the age of NGC 2547
J. M. Oliveira, R. D. Jeffries, C. R. Devey +4
We present the results of a photometric and spectroscopic survey of cool M dwarf candidates in the young open cluster NGC 2547. Using the 2dF fiber spectrograph, we have searched f…