Workshop Laboratorio Spettroscopia INAF

10 Jun 2019, 11:00 → 11 Jun 2019, 17:20 Europe/Rome

INAF researchers are involved in many of the most important galactic and extragalactic optical or near-infrared spectroscopic surveys, often with leading roles. INAF participation to these projects has benefited from the contribution of groups of researchers distributed in more than one or two institutes. Despite the fact that the same institutes/people are involved in several projects and that many skills and tools acquired in one project could be exploited in another one, the participation to these surveys has so far seen little coordination.

The goal of the proposed Laboratorio di Spettroscopia INAF is to further enhance the already strong role of INAF in this rapidly expanding field by pursuing a more synergic approach to on-going and future surveys. In particular, we aim at a more efficient use of the existing skills and tools and to stimulate the development of new ones that can beneficial for the whole INAF community.

The proposed Lab, and therefore this workshop, does not focus on the instrumentation needed to carry out spectroscopic surveys, nor on the fantastic science that can be extracted from them. It is instead conceived to explore the possibility of sharing within the INAF community software tools and expertise that are extremely valuable when planning, carrying out, or analyze data from large optical or near-infrared spectroscopic surveys.  The Lab would be the focal point where to collect and distribute these tools, showcase individual or group expertise relevant for spectroscopic surveys, and stimulate the creation of new tools under the guidance of the INAF spectroscopic community.

Monday, 10 June

Intro to the Lab Concept

Convener: Sofia Randich

1 Aims and organization of the national laboratories at INAF

Speaker: Adriano Fontana

Fontana.pdf

2 Towards a new INAF laboratory for spectroscopy

Speakers: Germano Sacco, Marco Scodeggio

Intro_LAB.pdf

Requirements and needs from current and future Spectroscopic Surveys

An overview of upcoming survey projects, to highlight the needs and challenges faced by the astronomers participating to these projects

Convener: Sofia Randich

3 MOONS GTO GALACTIC Survey and Labs

In this talk I will briefly review the main features of the MOONS GTO Galactic Survey, including data treatment. I will also pose some questions for discussion concerning Labs.

Speaker: Livia Origlia

Origlia.pdf

4 WEAVE and 4MOST Galactic Surveys

Speaker: Sara Lucatello

5 A 4MOST survey of young stars in the solar neighbourhood: the role of the laboratory

Speaker: Germano Sacco

4MOST_ystars_lab.pdf

13:10 Lunch Break

Requirements and needs from current and future Spectroscopic Surveys

An overview of upcoming survey projects, to highlight the needs and challenges faced by the astronomers participating to these projects

Convener: Laura Pentericci

6 WEAVE-STePS - Lessons learned

In this talk we will present what are the tools that we think are needed to prepare efficiently science exploitation of forthcoming spectrsocopic extragalactic large surveys.
We will discuss our experience of planning for the forthcoming WEAVE-StePS survey, highlighting the advantages offered by the availability of simple tools that enable realistic simulations of the whole process from observations to retrieval of physical measurements from observed spectra.

Speaker: Angela Iovino

Iovino.pdf

7 MOONS extragalactic surveys

Speaker: Bianca Garilli

Garilli.pdf

8 Lessons for the Future from High-Resolution Surveys

High-resolution spectroscopy traditionally has been one of the first fields in which the standardizationof the data and the implementation of an end-to-end concept of the instrumentation has taken place. The HIRES @ Keck and UVES and, more recently, ESPRESSO @ VLT are paramount
recent examples in this sense (e.g. KODIAK, Popler).
This overview talk will try to extract the lessons derived from the past experience, with particular attention to the software requirements, including instrument simulators, data reduction and analysis, and their importance in the conception of new instruments, planning of surveys and their scientific exploitation, emphasizing the role of automatic tools and the dissemination of the science data products

Speaker: Stefano Cristiani

9 Spectroscopic characterisation of sub-stellar objects

Speaker: Valentina D'Orazi

vdorazi_labspec.pdf

15:40 Coffee Break

Data processing and data analysis pipelines

A discussion about the software tools for data reduction and analysis

Convener: Stefano Cristiani

10 Spectroscopic pipelines from VLT/VIMOS to the LBT instruments and beyond

Speaker: Marco Scodeggio

MScodeggio_pipelines.pdf

11 QSFit: Automatic analysis of AGN optical spectra

The QSFit package allows to perform automatic analysis of optical/UV AGN spectra. The software is very easy to use (it just requires the input FITS file) and provides estimates of: emission line luminosities, widths and velocity offsets; host galaxy luminosities; iron lines luminosities at optical and UV wavelengths; Balmer continuum luminosities; continuum slopes and luminosities at several wavelengths; etc. The ultimate purpose of QSFit is to allow astronomers to run standardized recipes to analyse the AGN data, in a simple, replicable and shareable way.
I will present the analysis algorithm and the scientific exploitation of the first catalog of spectral properties, measured on a sample of ~70,000 SDSS spectra of type I AGN with z < 2 (Calderone et al. 2017, http://qsfit.inat.it). Also, I will show how to perform the analysis on new spectral data (regardless of the telescope/instrument used), how to customize the procedure for specific needs, and discuss how QSFit is currently being employed to analyze the low-resolution spectra of AGN in the J-PAS survey.

Speaker: Giorgio Calderone

Calderone.pdf

12 Present and Future of stellar spectroscopy

Speaker: Raffaele Gratton

Gratton.pdf

13 Measuring gas-phase metallicities in distant galaxies

Speaker: Filippo Mannucci

mannucci.pdf

Tuesday, 11 June

Modeling

Convener: Bianca Garilli

14 Methodological challenges in the spectroscopic estimates of stellar population parameters from low to high redshift

Speaker: Stefano Zibetti

Zibetti.pdf

15 INTRIGOSS: A library of High Resolution synthetic spectra for FGK stars

Speaker: Mariagrazia Franchini

Farnchini.pdf

Scientific Databases

A discussion about the needs for database facilities and database browsing tools.

Convener: Bianca Garilli

16 The Italian Astronomical Archive (IA2): status of the services and future perspectives

Speaker: Elisa Londero

Londero.pdf

17 Large-scale spectroscopic surveys management

Speaker: Paolo Frazetti

franzetti.pdf

18 Expandable Management of Astrophysical Catalogues: the case of CLASH-VLT data

Speaker: Giuseppe Riccio

Riccio1.pdf

19 The ICT Office at INAF: todays activity and future plans.

The ICT office of the Science Directorate of INAF has the primary role to support INAF researchers
in scientific and technological activities related to Information Technology (IT) at large.
IT is playing a crucial role in present and future scientific activities. New challenges in astronomy
require the use of modern ICT tools and frameworks such as efficient large storage systems,
distributed databases, cloud infrastructures and HPDA computing resources. Besides, new technologies
and algorithms will be necessary to reduce, analyses and explore the “big data” from new
experiments.
These challenges are common to the all the Astronomy and Astrophysics research communities in
INAF so that software development methods, scientific data management and their use through
general-purpose computing facilities can be focused into a more general perspective.
ICT office is working to support the interaction between the various research community, it is
willing to facilitate the exchange of experiences and share of resources when possible and useful.
The services presently offered to the INAF community by the ICT Office in the area of computing,
database, software development and preservation, dissemination and e-Learning are presented in
this talk.
On the other side, we will also collect useful requirements and ideas to capture better the needs of
INAF researchers and improve our work as ICT Office.

Speaker: Anna Di Giorgio

11:20 Coffee Break

Artificial Intelligence and New technologies

An exploration of new data analysis techniques

Convener: Stefano Zibetti

20 Astroinformatics and Astrophysics, a virtuous synergy in the Big Data era

Speaker: Massimo Brescia

Brescia.pdf

21 Data processing for high-resolution spectroscopy: today and tomorrow

INAF has a long tradition in the treatment of spectroscopical data. The Astronomical Observatory of Trieste (OATs), in particular, has always been at the forefront of the field, both validating the state-of-the-art software (e.g. the VLT UVES and X-shooter pipelines) and implementing new solutions
for the analysis of near-UV to near-IR medium-to-high resolution quasar spectra.
In this talk, I will present some of the results we distributed through the years: the XQ-100 catalogue of processed quasar spectra, the Data Analysis Software for VLT ESPRESSO, and the new Python package Astrocook, which is aimed to pave the way towards the next-generation instruments like the ELT hi-res spectrograph. I will emphasize the core features of our approach (automation through abstraction of human behavior, modularity, graphical functionalities) and underline the most important challenges for the future (integration with the archive infrastructure, end-to-end instrument simulation).

Speaker: Guido Cupani

Cupani.pdf

22 SyNaLoTA, a web infrastructure for astrophysical data analysis and exploration

On top of modern large astrophysical data repositories, a fast, flexible, portable and efficient system for data analysis and exploration is required. We present SyNaLoTA (Systems from Naples for Long Term Analysis), a web based infrastructure, specialized in monitoring, analysis and visualization
of scientific data. Initially designed and under development for the ESA Euclid Mission Instrument Operation Team, it can be easily tuned and extended to pursue data exploration within
any astrophysical context. Its embedded services, like dynamic plots and diagrams, interactive handling of images, advanced statistical tools, can be extended and calibrated for any kind of astrophysical investigation, including also machine and deep learning facilities.

Speaker: Giuseppe Riccio

Riccio2.pdf

23 Is this lab properly aimed? Optimizing data quality and analysis by focusing on the design, calibration and maintenance of the spectrometers.

The analysis of data is too often considered as a task that must inevitably accept and correct the problems related to the instrumentation.
Many FTEs are therefore dedicated to developing tools and tricks to mitigate these problems; and when these FTEs are not available the data are poorly used or not used at all.
In most cases, the instrumental problems can be solved using far less efforts and resources. Unfortunately, this very rarely occurs because of the traditionally radicated ways of thinking that separate the “instrumentation technologists” from the “astronomers”. I will give some practical examples in my talk.
A national laboratory for spectroscopy could be the ideal opportunity to create a constructive collaboration between the two groups. Instead, leaving instrumental technology out of the initiative could aggravate the separation.

Speaker: Ernesto Oliva

20190611_Oliva_presentation.pdf

13:10 Lunch Break

Laboratory goals, timeline, and organization

24 Open discussion on aims, organization and future actions for the laboratory

Speakers: Adriano Fontana, Germano Sacco, Marco Scodeggio