搜索结果: 1-15 共查到“天文学 VLT”相关记录15条 . 查询时间(0.139 秒)
The Resolved Structure and Dynamics of an Isolated Dwarf Galaxy: A VLT and Keck Spectroscopic Survey of WLM
Resolved Structure Dynamics Isolated Dwarf Galaxy VLT Keck Spectroscopic Survey WLM
2012/2/23
We present spectroscopic data for 180 red giant branch stars in the isolated dwarf irregular galaxy WLM. Observations of the Calcium II triplet lines in spectra of RGB stars covering the entire galaxy...
GRB091127/SN2009nz and the VLT/X-shooter spectroscopy of its host galaxy: probing the faint end of the mass-metallicity relation
Gamma-rays bursts: individual: GRB091127 – supernovae: individual: SN2009nz – Galaxies: ISM– Galaxies: evolution
2011/10/12
We perform a detailed study of the gamma-ray burst GRB091127/SN2009nz host galaxy at z=0.490 using the VLT/X-shooter spectrograph in slit and integral-field unit (IFU). From the analysis of the optica...
Chemical abundances in the protoplanetary disk LV2 (Orion) - II: High dispersion VLT observations and microjet properties
ISM – abundances HII regions ISM:stars: pre-main-sequence protostars protoplan- etary disks
2011/9/29
Integral field spectroscopy of the LV2 proplyd is presented taken with the VLT/FLAMES Argus array at an angular resolution of 0.31x0.31 arcsec^2 and velocity resolutions down to 2 km/s per pixel. Foll...
Sparse aperture masking at the VLT I. Faint companion detection limits for the two debris disk stars HD 92945 and HD 141569
Instrumentation: high angular resolution – Stars: planetary systems – Stars: individual
2011/9/29
Observational data on companion statistics around young stellar systems is needed to flesh out the formation pathways for extrasolar planets and brown dwarfs. Aperture masking is a new technique that ...
The instrumental polarization of the Nasmyth focus polarimetric differential imager NAOS/CONICA (NACO) at the VLT - Implications for time-resolved polarimetric measurements of Sgr A*
the Nasmyth focus polarimetric differential imager NAOS/CONICA (NACO)
2011/1/10
We report on the results of calibrating and simulating the instrumental polarization properties of the ESO VLT adaptive optics camera system NAOS/CONICA (NACO) in the Ks-band. We use the Stokes/Muelle...
Comparison of the VIMOS-VLT Deep Survey with the Munich semi-analytical model - I. Magnitude counts, redshift distribution, colour bimodality, and galaxy clustering
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/23
This paper presents a detailed comparison between high-redshift observations from the VIMOS-VLT Deep Survey (VVDS) and predictions from the Munich semi-analytical model of galaxy formation.
VLT探测到另一个远距离的恒星质量黑洞
恒星质量黑洞 天文学家 恒星
2011/12/16
天文学家发现了第二大恒星质量黑洞，质量大于15倍太阳质量。这个恒星质量黑洞位于NGC 300星系，距离地球六百万光年。同时发现的还有伴随它的一颗沃尔夫-拉叶星，质量大约是太阳的20倍。
VLT利用MAD获得了Carina 星云中Trumpler 14星团中心部分的清晰样貌，根据拍摄的结果，天文学家获知Trumpler 14星团不仅是Carina星云中最年轻的家族（大约0.5百万年），也是成员最稠密的恒星家族之一。
The chemical composition of the galactic H II regions M8 and M17. A revision based on deep vlt echelle spectrophotometry
chemical composition vlt echelle spectrophotometry galactic H II
2009/7/9
The chemical composition of the galactic H II regions M8 and M17. A revision based on deep vlt echelle spectrophotometry。
VLT spectroscopy of massive stars in NGC55。
VLT/SINFONI spectroscopy of the superantennae。
Using the VLT to analyze the compact photoionized regions in NGC 3109
NGC 3109 VLT compact photoionized regions
2009/6/30
Using the VLT to analyze the compact photoionized regions in NGC 3109。
The binarity status of stars with and without planets Probed with vlt/naco
stars vlt/naco Probed
2009/6/17
The binarity status of stars with and without planets Probed with vlt/naco。
Deep vlt spectroscopy of high redshift radio galaxy MRC 2104{242：evidence for a metallicity gradient
Deep vlt spectroscopy high redshift radio galaxy metallicity gradient
2009/6/10
Deep vlt spectroscopy of high redshift radio galaxy MRC 2104{242：evidence for a metallicity gradient。
Preliminary Results on VLT K-band Imaging Observations of GRB Host Galaxies
evolution high-redshift Gamma-ray Bursts
2009/5/19
We have obtained K-band imaging observations of Gamma-
Ray Burst (GRB) host galaxies with the near-infrared spectro-imager
ISAAC installed on the Very Large Telescope at Paranal (Chile). The
derive...