Outputs (9)

Recent advances in nanoparticle synthesis with reversed micelles (2006)
Journal Article
Eastoe, J., Hollamby, M. J., & Hudson, L. (2006). Recent advances in nanoparticle synthesis with reversed micelles. Advances in colloid and interface science, 128-130, 5 -15. https://doi.org/10.1016/j.cis.2006.11.009

Synthesis of nanoparticles in microemulsions is an area of considerable current interest. This subject can be broadly divided into two sections defined by the nature of the host microemulsion reaction medium. Water-in-oil microemulsions have been use... Read More about Recent advances in nanoparticle synthesis with reversed micelles.

Massive Young Stellar Objects in the Large Magellanic Cloud: water masers and ESO-VLT 3-4 micron spectroscopy (2006)
Journal Article
M. Oliveira, J., Th van Loon, J., Stanimirovic, S., & A. Zijlstra, A. (2006). Massive Young Stellar Objects in the Large Magellanic Cloud: water masers and ESO-VLT 3-4 micron spectroscopy. Monthly Notices of the Royal Astronomical Society, 372(4), https://doi.org/10.1111/j.1365-2966.2006.11007.x

We investigate the conditions of star formation in the Large Magellanic Cloud. We have conducted a survey for water maser emission arising from massive young stellar objects in the 30 Doradus region (N 157) and several other H II regions in the Large... Read More about Massive Young Stellar Objects in the Large Magellanic Cloud: water masers and ESO-VLT 3-4 micron spectroscopy.

Kinematic structure in the young σ Orionis association (2006)
Journal Article
Jeffries, R., Maxted, P., Oliveira, J., & Naylor, T. (2006). Kinematic structure in the young σ Orionis association. Monthly Notices of the Royal Astronomical Society, 371(1), L6 - L10. https://doi.org/10.1111/j.1745-3933.2006.00196.x

We have used precise radial velocity measurements for a large number of candidate low-mass stars and brown dwarfs, to show that the young Sigma Ori ``cluster'' consists of two spatially superimposed components which are kinematically separated by 7 k... Read More about Kinematic structure in the young σ Orionis association.

Star Formation in the Eagle Nebula and NGC 6611 (2006)
Journal Article
Oliveira, J. M., Jeffries, R. D., & van Loon, J. T. (2006). Star Formation in the Eagle Nebula and NGC 6611. Proceedings of the International Astronomical Union, 2(S237), https://doi.org/10.1017/S1743921307002487

We present IZJHKL' photometry of the core of the cluster NGC 6611 in the Eagle Nebula. This photometry is used to constrain the Initial Mass Function (IMF) and the circumstellar disk frequency of the young stellar objects. Optical spectroscopy of 258... Read More about Star Formation in the Eagle Nebula and NGC 6611.

The Conditions for Star Formation at Low Metallicity: Results from the LMC (2006)
Journal Article
M. Oliveira, J., Th van Loon, J., & Stanimirovic, S. (2006). The Conditions for Star Formation at Low Metallicity: Results from the LMC. Proceedings of the International Astronomical Union, 2(S237), https://doi.org/10.1017/S1743921307002475

We present our recent work on the conditions under which star formation occurs in a metal-poor environment, the Large Magellanic Cloud ([Fe/H] ~ -0.4). Water masers are used as beacons of the current star formation in HII regions. Comparing their loc... Read More about The Conditions for Star Formation at Low Metallicity: Results from the LMC.

Eclipsing Binaries in Open Clusters (2006)
Journal Article
Southworth, J., & Viggo Clausen, J. (2006). Eclipsing Binaries in Open Clusters. Astrophysics and Space Science, 304, Article 199–202. https://doi.org/10.1007/s10509-006-9110-3

Detached eclipsing binaries are very useful objects for calibrating theoretical stellar models and checking their predictions. Detached eclipsing binaries in open clusters are particularly important because of the additional constraints on their age... Read More about Eclipsing Binaries in Open Clusters.

Rotating massive stars @ very low Z: high C and N production (2006)
Conference Proceeding
Hirschi, R. (2006). Rotating massive stars @ very low Z: high C and N production. . https://doi.org/10.1063/1.2234385

Two series of models and their yields are presented in this paper. The first series consists of 20 Mo models with varying initial metallicity (solar down to $Z=10^{-8}$) and rotation (Vini=0-600 km/s). The second one consists of models with an initia... Read More about Rotating massive stars @ very low Z: high C and N production.

Stellar evolution of massive stars at very low metallicities (2006)
Book Chapter
Hirschi, R., Fröhlich, C., Liebendörfer, M., & -K. Thielemann, F. (2006). Stellar evolution of massive stars at very low metallicities. In Reviews in Modern Astronomy. Wiley. https://doi.org/10.1002/9783527619030.ch5

Recently, measurements of abundances in extremely metal poor (EMP) stars have brought new constraints on stellar evolution models. In an attempt to explain the origin of the abundances observed, we computed pre--supernova evolution models, explosion... Read More about Stellar evolution of massive stars at very low metallicities.

Circumstellar discs in the young σ Orionis cluster (2006)
Journal Article
Oliveira, J., Jeffries, R., Van Loon, J., & Rushton, M. (2006). Circumstellar discs in the young σ Orionis cluster. Monthly Notices of the Royal Astronomical Society, 369(1), 272 -280. https://doi.org/10.1111/j.1365-2966.2006.10299.x

We present new K- and L'-band imaging observations for members of the young (3-5 Myr) sigma Orionis cluster, obtained with UIST at UKIRT. We determine (K-L') colour excesses with respect to the photospheres, finding evidence for warm circumstellar du... Read More about Circumstellar discs in the young σ Orionis cluster.