Publications by Myriam Arnal Rodrigues

The Science Case for Multi-Object Spectroscopy on the European ELT

ArXiv (0)

C Evans, M Puech, J Afonso, O Almaini, P Amram, H Aussel, B Barbuy, A Basden, N Bastian, G Battaglia, B Biller, P Bonifacio, N Bouché, A Bunker, E Caffau, S Charlot, M Cirasuolo, Y Clenet, F Combes, C Conselice, T Contini, J-G Cuby, G Dalton, B Davies, AD Koter, K Disseau, J Dunlop, B Epinat, F Fiore, S Feltzing, A Ferguson, H Flores, A Fontana, T Fusco, D Gadotti, A Gallazzi, J Gallego, E Giallongo, T Gonçalves, D Gratadour, E Guenther, F Hammer, V Hill, M Huertas-Company, R Ibata, L Kaper, A Korn, S Larsen, OL Fèvre, B Lemasle, C Maraston, S Mei, Y Mellier, S Morris, G Östlin, T Paumard, R Pello, L Pentericci, C Peroux, P Petitjean, M Rodrigues, L Rodríguez-Muñoz, D Rouan, H Sana, D Schaerer, E Telles, S Trager, L Tresse, N Welikala, S Zibetti, B Ziegler

This White Paper presents the scientific motivations for a multi-object spectrograph (MOS) on the European Extremely Large Telescope (E-ELT). The MOS case draws on all fields of contemporary astronomy, from extra-solar planets, to the study of the halo of the Milky Way and its satellites, and from resolved stellar populations in nearby galaxies out to observations of the earliest 'first-light' structures in the partially-reionised Universe. The material presented here results from thorough discussions within the community over the past four years, building on the past competitive studies to agree a common strategy toward realising a MOS capability on the E-ELT. The cases have been distilled to a set of common requirements which will be used to define the MOSAIC instrument, entailing two observational modes ('high multiplex' and 'high definition'). When combined with the unprecedented sensitivity of the E-ELT, MOSAIC will be the world's leading MOS facility. In analysing the requirements we also identify a high-multiplex MOS for the longer-term plans for the E-ELT, with an even greater multiplex (>1000 targets) to enable studies of large-scale structures in the high-redshift Universe. Following the green light for the construction of the E-ELT the MOS community, structured through the MOSAIC consortium, is eager to realise a MOS on the E-ELT as soon as possible. We argue that several of the most compelling cases for ELT science, in highly competitive areas of modern astronomy, demand such a capability. For example, MOS observations in the early stages of E-ELT operations will be essential for follow-up of sources identified by the James Webb Space Telescope (JWST). In particular, multi-object adaptive optics and accurate sky subtraction with fibres have both recently been demonstrated on sky, making fast-track development of MOSAIC feasible.


The Astrophysical Journal IOP Publishing 767 (0) 72-72

B Rothberg, J Fischer, M Rodrigues, DB Sanders

How was the Hubble sequence 6 Gyr ago?


R Delgado-Serrano, F Hammer, YB Yang, M Puech, H Flores, M Rodrigues

Evolution of intermediate mass galaxies up to z~0.7 and studies of SNe Ia hosts

ArXiv (0)

M Rodrigues

In the first part of this manuscript, I present the results on the properties of the interstellar medium and the stellar content of galaxies at z=0.6, from a representative sample of distant galaxies observed with the long slit spectrograph VLT/FORS2. This study has been realized in the framework of the ESO large program IMAGES "Intermediate MAss Galaxy Evolution Sequences", which aims to investigate the evolution of the main global properties of galaxies up to z~0.9. I discuss the implications of the observed chemical enrichment of the gas on the scenarios of galaxy formation. I also propose a new method to estimate reliable stellar masses in starburst galaxies using broadband photometry and their total star-formation rate. In a second part, I present a new method to extract, with high accuracy, the sky in spectra acquired with a fiber-fed instrument. I have developed this code in the Framework of the phase A of an instrument proposed for the E-ELT: OPTIMOS-EVE. This is a multi-fiber spectrograph able to observe at optical and infrared wavelengths simultaneously. In the third part, I show preliminary results from the CENTRA GEPI- survey at Calar Alto Observatory to study nearby galaxies, hosts of type Ia supernovae, using integral field spectroscopy. I present the first 2D maps of the gas and stellar populations of SNe Ia hosts. The results allow us to directly access the host properties in the immediate vicinity of the SNe Ia. This is a crucial step to investigate eventual correlations between galaxy properties and SNe Ia events and evolution, leading to systematic effects on the derivation of the cosmological parameters.

A forming, dust-enshrouded disk at z=0.43: the first example of a massive, late-type spiral rebuilt after a major merger?

ASTRONOMY & ASTROPHYSICS 496 (2009) 381-387

F Hammer, H Flores, YB Yang, E Athanassoula, M Puech, M Rodrigues, S Peirani

A surviving disk from a galaxy collision at z=0.4

ASTRONOMY & ASTROPHYSICS 501 (2009) 437-443

Y Yang, F Hammer, H Flores, M Puech, M Rodrigues

The Hubble sequence: just a vestige of merger events?

ASTRONOMY & ASTROPHYSICS 507 (2009) 1313-U154

F Hammer, H Flores, M Puech, YB Yang, E Athanassoula, M Rodrigues, R Delgado

The Chemical Evolution of Intermediate Mass Galaxies over the Last 8 Gyrs


M Rodrigues, M Rodrigues, F Hammer, H Flores, M Puech

IMAGES IV*: strong evolution of the oxygen abundance in gaseous phases of intermediate mass galaxies from z similar to 0.8

ASTRONOMY & ASTROPHYSICS 492 (2008) 371-388

M Rodrigues, F Hammer, H Flores, M Puech, YC Liang, I Fuentes-Carrera, N Nesvadba, M Lehnert, Y Yang, P Amram, C Balkowski, C Cesarsky, H Dannerbauer, R Delgado, B Guiderdoni, A Kembhavi, B Neichel, G Ostlin, L Pozzetti, CD Ravikumar, A Rawat, SDS Alighieri, D Vergani, J Vernet, H Wozniak

IMAGES: a unique view of the galaxy mass assembly since z=1


M Rodrigues, M Puech, H Flores, F Hammer, Y Yang, B Neichel, M Lehnert, L Chemin, N Nesvadba, B Epinat, P Amram, C Balkowski, C Cesarsky, H Dannerbauer, S di Serego Alighieri, I Fuentes-Carrera, BA Kembhavi, YC Liang, G Östlin, L Pozzetti, CD Ravikumar, A Rawat, D Vergani, J Vernet, H Wozniak, R Delgado, M Rodrigues

The direct oxygen abundances of metal-rich galaxies derived from electron temperature


YC Liang, F Hammer, SY Yin, H Flores, M Rodrigues, YB Yang

First detection of a minor merger at z similar to 0.6


M Puech, F Hammer, H Flores, B Neichel, Y Yang, M Rodrigues

Morpho-kinematic of distant galaxies with JWST and MOSAIC

Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics. (0)

M Rodrigues, F Hammer, M Puech, H Flores

A Monster At Any Other Epoch: Are Intermediate Redshift ULIRGs the Progenitors of QSO Host Galaxies?

IAU General Assembly, Meeting #29, id.2257946 (0)

B Rothberg, J Fischer, M Rodrigues, N Pirzkal

Integral Field Spectroscopy of supernova host galaxies


L Galbany, V Stanishev, AM Mour ao, M Rodrigues, H Flores

First Light for the KMOS Multi-Object Integral-Field Spectrometer


R Sharples, R Bender, A Agudo Berbel, N Bezawada, R Castillo, M Cirasuolo, G Davidson, R Davies, M Dubbeldam, A Fairley, G Finger, N Förster Schreiber, F Gonte, A Hess, I Jung, I Lewis, J-L Lizon, B Muschielok, L Pasquini, J Pirard, D Popovic, S Ramsay, P Rees, J Richter, M Riquelme, M Rodrigues, I Saviane, J Schlichter, L Schmidtobreick, A Segovia, A Smette, T Szeifert, A van Kesteren, M Wegner, E Wiezorrek

A new algorithm for sky extraction for multi-fiber instrument

ArXiv (0)

M Rodrigues, H Flores, M Puech, Y Yang, F Royer

We present a new method to subtract sky light from faint object observations with fiber-fed spectrographs. The algorithm has been developed in the framework of the phase A of OPTIMOS-EVE, an optical-to-IR multi-object spectrograph for the future european extremely large telescope (E-ELT). The new technique overcomes the apparent limitation of fiber-fed instrument to recover with high accuracy the sky contribution. The algorithm is based on the reconstruction of the spatial fluctuations of the sky background (both continuum and emission) and allows us to subtract the sky background contribution in an FoV of $7\times7 arcmin^2$ with an accuracy of 1% in the mono-fibers mode, and 0.3-0.4% for integral-field-unit observations.

The Elaboration of Spiral Galaxies: Morpho-kinematics Analyses of their Progenitors at z 0.6

ASP Conference Series, Vol. 419 (0)

F Hammer, H Flores, M Puech, R Delgado, B Neichel, S Peirani, M Rodrigues, Y Yang, P Amram, E Athanassoula, C Balkowski, L Chemin, B Epinat, I Fuentes-Carrera, Y Liang

Evolution of the Mass-Metallicity Relation from IMAGES

ASP Conference Series, Vol. 390 (0)

M Rodrigues, H Flores, F Hammer, YC Liang