E3D, the Euro3D visualization tool II: Mosaics, VIMOS data and large IFUs of the future

Sanchez, Sebastian Francisco Sanchez; Becker, T.; Kelz, Andreas

doi:10.1002/asna.200310203

Cited by 10 publications

(10 citation statements)

References 8 publications

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“…We produced maps of the dynamics for the galaxies in our sample by using e3d , the Euro3D visualization tool (Sánchez, Becker & Kelz 2004a), and a code for the fitting and analysis of kinematics (e.g. Sánchez et al 2004b, 2005).…”

Section: Properties From Spatially Resolved Kinematicmentioning

confidence: 99%

2D kinematics and physical properties ofz ∼ 3star-forming galaxies

Lemoine-Busserolle

Bunker

Lamareille

et al. 2010

Monthly Notices of the Royal Astronomical Society

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We present results from a study of the kinematic structure of star‐forming galaxies at redshift z∼ 3 selected in the VIMOS VLT Deep Survey (VVDS), using integral field spectroscopy of rest‐frame optical nebular emission lines, in combination with rest‐frame UV spectroscopy, ground‐based optical/near‐IR and Spitzer photometry. We also constrain the underlying stellar populations to address the evolutionary status of these galaxies. We infer the kinematic properties of four galaxies: VVDS‐20298666, VVDS‐020297772, VVDS‐20463884 and VVDS‐20335183 with redshifts z= 3.2917, 3.2878, 3.2776 and 3.7062, respectively. While VVDS‐20463884 presents an irregular velocity field with a peak in the local velocity dispersion of the galaxy shifted from the centre of the galaxy, VVDS‐20298666 has a well‐resolved gradient in velocity over a distance of ∼4.5 kpc with a peak‐to‐peak amplitude of v= 91 km s−1. We discovered that the nearby galaxy, VVDS‐020297772 (which shows traces of active galactic nucleus activity), is in fact a companion at a similar redshift with a projected separation of 12 kpc. In contrast, the velocity field of VVDS‐020335183 seems more consistent with a merger on a rotating disc. However, all of the objects have a high local velocity dispersion (σ∼ 60–70 km s−1), which gives v/σ≲ 1. It is unlikely that these galaxies are a dynamically cold rotating disc of ionized gas.

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Section: Properties From Spatially Resolved Kinematicmentioning

confidence: 99%

2D kinematics and physical properties ofz ∼ 3star-forming galaxies

Lemoine-Busserolle

Bunker

Lamareille

et al. 2010

Monthly Notices of the Royal Astronomical Society

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“…Although initially written to reduce PMAS data, it was slightly modified to reduce data from other IFUs, such as VIMOS (e.g. Sánchez et al 2004a). The expected locations of the spectra were traced on a continuum-lamp exposure obtained before each target exposure.…”

Section: Observations and Data Reductionmentioning

confidence: 99%

“…A 3σ clipping algorithm was used to remove possible cosmic rays. The different PMAS pointings were mosaiced into a single frame, using the Euro3D data format, as described in Sánchez et al (2004a).…”

Section: Observations and Data Reductionmentioning

confidence: 99%

The merging/AGN connection

Sánchez¹,

Becker²,

García-Lorenzo

et al. 2004

A&A

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Abstract.We report the first results of a study of a sample of 20 galaxy mergers/interacting systems, using the VIMOS and PMAS integral field spectrographs. For each object, we extracted the integrated spectrum of the central regions and analyzed the ionization state using classical diagnostic diagrams (Veilleux & Osterbrock 1987). There is evidence of AGN ionization in 4 of the objects, i.e. 20% of the sample, a considerably higher fraction than found in previous studies (∼4%). An increase of the nuclear activity with the far infrared temperature may account for the difference.

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“…Different packages solve this problem by using a single data format for internal implementation and provide users with an importing functionality that converts existing commonly used data formats into the internal file format (e.g. Sanchez (2004); Sanchez et al (2004); Kissler-Patig et al (2004); Becciani et al (2010)). This may not be an efficient solution for large datasets due to storage and processing requirements.…”

Section: Challenges For Visualization Researchersmentioning

confidence: 99%

Scientific Visualization in Astronomy: Towards the Petascale Astronomy Era

Hassan

Fluke

2011

Publ. – Astron. Soc. Aust

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Astronomy is entering a new era of discovery, coincident with the establishment of new facilities for observation and simulation that will routinely generate petabytes of data. While an increasing reliance on automated data analysis is anticipated, a critical role will remain for visualization-based knowledge discovery. We have investigated scientific visualization applications in astronomy through an examination of the literature published during the last two decades. We identify the two most active fields for progressvisualization of large-N particle data and spectral data cubes -discuss open areas of research, and introduce a mapping between astronomical sources of data and data representations used in general-purpose visualization tools. We discuss contributions using high-performance computing architectures (e.g. distributed processing and GPUs), collaborative astronomy visualization, the use of workflow systems to store metadata about visualization parameters, and the use of advanced interaction devices. We examine a number of issues that may be limiting the spread of scientific visualization research in astronomy and identify six grand challenges for scientific visualization research in the Petascale Astronomy Era.

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E3D, the Euro3D visualization tool II: Mosaics, VIMOS data and large IFUs of the future

Cited by 10 publications

References 8 publications

2D kinematics and physical properties ofz ∼ 3star-forming galaxies

2D kinematics and physical properties ofz ∼ 3star-forming galaxies

The merging/AGN connection

Scientific Visualization in Astronomy: Towards the Petascale Astronomy Era

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