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Related papers: VLT/MUSE discovers a jet from the evolved B[e] sta…

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The evolutionary phase of B[e] stars is difficult to establish due to the uncertainties in their fundamental parameters. For instance, possible classifications for the Galactic B[e] star MWC 137 include pre-main-sequence and…

Solar and Stellar Astrophysics · Physics 2015-06-23 M. F. Muratore , M. Kraus , M. E. Oksala , M. L. Arias , L. Cidale , M. Borges Fernandes , A. Liermann

The Galactic object MWC 137 was suggested to belong to the group of B[e] supergiants. However, with its large-scale optical bipolar ring nebula and the high velocity jet and knots, it is a rather atypical representative of this class. We…

The Galactic B[e] supergiant MWC 137 is surrounded by a large-scale optical nebula. To shed light on the physical conditions and kinematics of the nebula, we analyze the optical forbidden emission lines [NII] 6548,6583 and [SII] 6716,6731…

Solar and Stellar Astrophysics · Physics 2021-09-29 Michaela Kraus , Tiina Liimets , Alexei Moiseev , Julieta P. Sanchez Arias , Dieter H. Nickeler , Lydia S. Cidale , David Jones

B[e] type stars are characterised by strong emission lines, photometric $\&$ spectroscopic variabilities and unsteady mass-loss rates. MWC 137 is a galactic B[e] type star situated in the constellation Orion. Recent photometric observation…

Solar and Stellar Astrophysics · Physics 2023-11-22 Sugyan Parida , Abhay Pratap Yadav , Michaela Kraus , Wolfgang Glatzel , Yogesh Chandra Joshi , Santosh Joshi

Jets and outflows are thought to play important roles in regulating star formation and disk evolution. HD 163296 is a well-studied Herbig Ae star that hosts proto-planet candidates, a protoplanetary disk, a protostellar jet, and a molecular…

Solar and Stellar Astrophysics · Physics 2021-06-04 C. Xie , S. Y. Haffert , J. de Boer , M. A. Kenworthy , J. Brinchmann , J. Girard , I. A. G. Snellen , C. U. Keller

We introduce VLT-MUSE observations of the central 2$'\times2'$ (30$\times$30 pc) of the Tarantula Nebula in the Large Magellanic Cloud. The observations provide an unprecedented spectroscopic census of the massive stars and ionised gas in…

Astrophysics of Galaxies · Physics 2018-07-04 N. Castro , P. A. Crowther , C. J. Evans , J. Mackey , N. Castro-Rodriguez , J. S. Vink , J. Melnick , F. Selman

B[e] stars are massive B type emission line stars in different evolutionary stages ranging from pre-main sequence to post-main sequence. Due to their mass loss and ejection events these objects deposit huge amounts of mass and energy into…

Solar and Stellar Astrophysics · Physics 2022-03-03 T. Liimets , M. Kraus , A. Moiseev , N. Duronea , L. S. Cidale , Cecilia Farina

Detailed studies of resolved young massive star clusters are necessary to determine their dynamical state and evaluate the importance of gas expulsion and early cluster evolution. In an effort to gain insight into the dynamical state of the…

Characterising stellar jet asymmetries is key to setting robust constraints on jet launching models and improving our understanding of the underlying mechanisms behind jet launching. We aim to characterise the asymmetric properties of the…

Solar and Stellar Astrophysics · Physics 2024-12-11 A. Murphy , E. T. Whelan , F. Bacciotti , D. Coffey , F. Comerón , J. Eislöffel , B. Nisini , S. Antoniucci , J. M. Alcalá , T. P. Ray

Multiple generations of stars are routinely encountered in globular clusters but no convincing evidence has been found in Galactic open clusters to date. In this paper we use new photometric and spectroscopic data to search for multiple…

Astrophysics of Galaxies · Physics 2015-06-19 Giovanni Carraro , Gayandhi de Silva , Lorenzo Monaco , Antonino Milone , Renee Mateluna

We present a mini-survey of Galactic B[e] stars mainly undertaken with the Large Binocular Telescope (LBT). B[e] stars show morphological features with hydrogen emission lines and an infrared excess, attributed to warm circumstellar dust.…

Solar and Stellar Astrophysics · Physics 2015-06-22 A. Liermann , O. Schnurr , M. Kraus , A. Kreplin , M. L. Arias , L. S. Cidale

We report the discovery of a massive, X-ray-luminous cluster of galaxies at z=1.393, the most distant X-ray-selected cluster found to date. XMMU J2235.3-2557 was serendipitously detected as an extended X-ray source in an archival XMM-Newton…

Astrophysics · Physics 2011-09-30 C. R. Mullis , P. Rosati , G. Lamer , H. Boehringer , A. Schwope , P. Schuecker , R. Fassbender

With high resolution (0."25 x 0."18) ALMA CO 3-2 observations of the nearby (D=21 Mpc, 1"=102 pc), extremely radio-quiet galaxy NGC1377, we have discovered a high-velocity, very collimated nuclear outflow which we interpret as a molecular…

Based on HST and MUSE data, we probe the stellar and gas properties (i.e. kinematics, stellar mass, star formation rate) of the radio-loud brightest cluster galaxy (BCG) located at the centre of the X-ray luminous cool core cluster Abell…

Using the Very Large Telescope's Spectrograph for INtegral Field Observation in the Near-Infrared (VLT/SINFONI), we have obtained repeated AO-assisted, NIR spectroscopy of the six central luminous, Wolf-Rayet (WR) stars in the core of the…

Solar and Stellar Astrophysics · Physics 2015-05-13 O. Schnurr , A. -N. Chene , J. Casoli , A. F. J. Moffat , N. St-Louis

Deep, narrow-band \Ha\ and 6584 \AA\ [\Nii ] CCD images of the peculiar, infrared excess B[e] star MWC~922 reveal a collimated, bipolar jet orthogonal to the previously detected extended nebula. The jet consists of a pair of $\sim$0.15 pc…

Astrophysics of Galaxies · Physics 2019-02-06 John Bally , Zen H. Chia

The peculiar emission-line star MWC 137 with its extended optical nebula was recently classified as B[e] supergiant. To study the spatial distribution of its circumstellar molecular gas on small and large scales, we obtained near-infrared…

The cluster R136 in the giant star-forming region 30 Doradus in the Large Magellanic Cloud (LMC) offers a unique opportunity to resolve a stellar population in a starburst-like environment. We obtain the near-infrared to ultraviolet…

In this work we present the highest spatial and spectral resolution integral field observations to date of the bipolar jet from the Orion proplyd 244-440 using MUSE NFM) observations on the VLT. We observed a previously unreported chain of…

In the effort to understand the link between the structure of galaxy clusters and their galaxy populations, we focus on MACSJ1206.2-0847 at z~0.44 and probe its substructure in the projected phase space through the spectrophotometric…

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