- Ángel Giménez (Spain)
- Title: Identification and characterization of optical counterparts to X-ray binary system.
- Description: We would like to develop a scientific case that enables us to identify and characterize optic counterparts in X-ray binary systems, in a similar way to that carried out by Ivan Zolotukhin identifying H-alpha emitters in X-ray surveys.It would be also interesting for us to study the wind properties of massive stars, accomplishing a multi-wavelength study in a spectral region as wide as possible, to get an amount of information as large as possible.
- Twiki page
- Anuar Khan Ali Franco (Spain)
- Title: Quasar SED fitting
- Description: We want to learn how to find photometric data and fit SEDS about 5 hard-quasar.
NAME RA DEC
RXJ0057 00:57:34.94 -27:28:28.0
RXJ0941 09:41:44.61 +38:54:39.1
RXJ1218 12:18:04.54 +47:08:51.0
RXJ1249 12:49:13.85 -05:59:19.4
RXJ1633 16:33:08.59 +57:02:54.8
Twiki page
- Francisco Galindo (Spain)
- Title: Several topics
- Handling large tables with STILTS
- Synthetic photometry from theoretical spectra
- Twiki page
- Ilaria Lonoce (Italy)
- Title: Discovery of spectroscopic information in VO archives
- Description: Starting from a sample of ~1300 galaxies with K<22 selected from the MUSIC-GOODS-South field at 0.7<z<3, the aim of the exercise is to find in the VO-archive optical/near IR spectroscopic data with sufficient high value of the S/N ratio (S/N > 10-15) to perform the measurements of some spectral indices. On the one hand, in order to divide the sample in star-forming and passive galaxies, the measured spectral features will be able to estimate the star formation rate by means of fluxes of some emission lines (such as Balmer lines, in particular Hα) thus completing the information given by the exercise of S. Tamburri based on radio 1.4 GHz flux; on the other hand, for galaxies with detected X-ray emission will be interesting to search for a possible confirmation of the presence of AGN, thanks to typical AGN emission lines (e.g. OIIIλ5007Å, MgIIλ2798Å...) and lines' ratios that can be detected and measured on the spectra. The presence of AGN can in fact contaminate the spectral stellar continuum and absorption lines thus distorting the results of any spectral analysis; in particular, some spectral indices in the region of 4000Å (restframe) can be used to estimate age and metallicity of galactic stellar populations. To be sure that the detected AGN doesn't affect the observed optical/near IR spectra, the exercise will then ask for finding available measures of the the column densities N_H of each sample's galaxy, which can reveal the AGN absorption level (absorbed AGN have N_H ≥ 10²² cm-²).
- Twiki page
- Sonia Tamburri (Italy)
- Title: Search for radio and X-ray counterparts
- Description: The aim of the exercise I propose is to search for radio and X-ray counterparts for a sample of ~1300 galaxies brighter than K=22 selected from the MUSIC-GOODS-South catalogue (Grazian et al. 06). This information could also be useful to my PhD research project. The sample is complete with a median redshift z=0.75 (~78% of the galaxies has spectroscopic redshift). Fitting the observed spectral energy distribution (SED) composed of 15 photometric bands with Bruzual and Charlot 2003 models, I divided the sample between passive and star forming galaxies. The values of the star formation rate thus derived are however affected by the uncertainties on the extinction, the initial mass function, the mean age etc. The VO tools would be extremely useful to find radio counterparts thus deriving more precise SFRs from flux measurements at 1.4 GHz and from Balmer emission lines (see I. Lonoce proposal). The search for X-ray counterparts combined with the radio and the spectral information will allow to reveal the presence of nuclear activity hence to disentangle SFR and AGN activity. The proposal exercise could finally ask for archive measurements of the structural parameters of the galaxies (effective radius and Sersic index) to associate galaxy morphology with the information on the SFR.
- Twiki page
- Joseph Polshaw (UK)
- Title: Gathering data from the VO
- Description: My PhD is within the supernova group in Queens University Belfast. My research currently involves studying Type Ia supernovae, which are discovered by the transient survey Pan-STARRS. After the supernova is identified, I am interested in studying the host galaxy in order to estimate the metallicity of the progenitor star of the explosion. The VO will help me to learn how to make the most of accessing data archives and software which will be incredibly useful for my current research.
- Twiki page
Tutors
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Giménez |
Alí |
Galindo |
Lonoce |
Tamburri |
Polshaw |
| C. Rodrigo |
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| F. Jiménez |
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| M. Allen |
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| S. Derrière |
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| M. Molinaro |
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| G. Iafrate |
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| G. Stoeckle |
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| M. Demleitner |
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| D. Baines |
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Synthetic photometry |
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| M. Taylor |
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Table Management |
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| P. Harrison |
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