Download Atmosfere in provetta: stato del progetto

Atmospheres in a test tube:
state of the art at the Astronomical
Observatory of Padova
Marco S. Erculiani a, b, Riccardo U. Claudi b,
Lorenzo Cocola c,
Diego Barbisan d, Matteo Meneghini d , Nicola Trivellin d ,
Nicoletta la Rocca e,
Daniela Billi f
Emanuele Pace g
Mariangela Cestelli Guidi h
a CISAS-"G.Colombo" Centre of Studies and Activities for Space Via Venezia 15, 35131, Padua - Italy ; b INAF - Astronomical
Observatory of Padova (Italy), Vicolo dell'osservatorio, 5, 35100 Padova; c LUXOR - Photonics and Nanotechnology institute CNR, Via Trasea 7 Padova, 35131, Italy; d Department of Information Engineering-DEI, via gradenigo 6B, Padova ; e University
of Padova, Department of Biology, Italy, f Dept. of Biology University of Rome-Tor Vergata; g Univ. Of Firenze, (Italy); h INFNNational Institute of Nuclear Physics
In collaboration with…
● INAF – IAPS Roma - Istituto di Astrophysics and Space Planetology Institute (G.
● Department of Biology of Roma Tor Vergata (D. Billi)
● INFN – National Laboratories of Frascati (E. Pace)
● GAPS group (R. Claudi, S. Benatti, M. Bonavita)
● Department of Biology of A. Vallisneri di Padova (Prof. Nicoletta La Rocca)
● DEI- Light Cube - Padova (Matteo Meneghini, Nicola Trivellin, Diego Barbisan)
● LUXOR - Padova (Luca Poletto e Lorenzo Cocola)
INAF –Astronomical
Observatory of
Padova
Piccioni, S. Stifani)
Timeline of the experiment
First step:
-M starlight simulator
-Incubator build-up
- Choice of bacteria
Fourth step:
-Irradiation of the
samples with M star
radiation at terrestrial
pressure,temperature and
extrasolar planet
gaseous mixture,
-Analysis of gaseous
abundances in the cells.
Second step:
Irradiation of the samples with
terrestrial conditions,
- Analysis of gaseous abundances
in the cells
Third step:
-Irradiation of the samples
with M star radiation,
-Analysis of gaseous abundances
in the cells
Ancillary science:Plants on M star planets
The choice of the bacteria
Resistent to harsh environemnts
Sensitive to the IR and NIR
bandwidth
Photosynthetic in low light
conditions
IR chls bacteria
IR-grown bacteria
Chroococcidiopsis spp.
Leptolyngbya sp.1
Chlorogloeopsis fritschii
Acharyochloris marina
Halomicronema hongdechloris
Bacteria incubator build-up
MINI-LISA
ambient
simulator
BOROFLOAT®
Window
O ring OR
4450
45685
Edmund
Optics
1’ windows coated
PS811B
Thorlabs
Solid Works inner cell project
Peltier cell
Study of feasibility of a starlight
simulator: sources
STAR TEMPERATURES
•G 5,000 K - 6,000 K.
•K 3,500 K - 5,000 K.
•M 2,500 K - 3,500 K.
Leggett et al.,
2001
Study of feasibility of a starlight
simulator: the pigments
Study of feasibility of a starlight
simulator: the hardware
ORIEL 6258 300 Watt Ozone Free
Newport 10LWF-600-B
Halogen lamp
Moist greenhouse distance, M0V star
230V_60W_DECO
24V_100W_OSRAM
230V_40W_Lexman
230V_40W_DECO
12VDC 40W 3A Lexman
230V_75W_OSRAM
Study of O2 productivity in
photosynthetic bacteria:the
simulaitons
pH=8; T=30°C; NaCl=3%
Behrendt et al 2013
Miyashita et al 2003
Chroococcidiopsis: 40 fmol/cell/h in normal growth condition (20
µmol of photons m -² s-1 ~ 40 mmolO2/g/h).
Acharyocloris marina: 1.3µmol of O2 /mg Chld/h
Measurement system
Accuracy: O2 <1% ; CO2 , CH4= 0.1%
Tunable Diode Laser Absorption Spectroscopy setup (TDLAS)
gas
La banda dell’ozono sposta il picco
da 600 nm a 685 nm
Kiang et al., 2007a
Green bump
(concentrazioni di
Chl-a e Chl-b)
Il 75% della radiazione
totale viene reirradiata,
Il 25 % dissipata
Red edge (varia a seconda del tipo
di organismo e al numero di
biomassa, all’idratazione e lo
spessore delle foglie e del
contenuto di carbonio).
Colori
Troppa luce → antocianine x proteggersi
L’antocianicna si accumula sulla superficie
delle foglie adattate ad ambienti ombrosi
e le dà una colorazione blu.
Se le piante acquisissero solo la luce blu
riflettendo nel rosso (→blue edge).
Stelle F
Ma sulla terra…
(A)eonium arboreum
Swarzkopf
Tacca integrifolia
Colocasia esculenta
Ophiopogon planiscapus
Hosta hosta
“Blue Mouse Ears”
Festuca ovina glauca
Stelle M
Contributes and publications
1) Atmospheres in a Test Tube, EPSC LONDRA 2013
R. Claudi M.S. Erculiani , E. Giro , M. D’Alessandro , G. Galletta
2) Laboratory investigation on super-Earths atmospheres, EPSC CASCAIS 2014
M. S. Erculiani , R. Claudi L. Lessio , G. Farisato , E. Giro, L. Cocola , D. Billi , M. D’alessandro , E. Pace , D. Schierano, S. Benatti, M. Bonavita , G. Galletta
3) Interpreting EChO's future data: biological laboratory estimates under M star's planetary surface conditions, SPIE, MONTREAL 2014
Marco S. Erculiani, Riccardo U. Claudi , Enrico Giro , Giuseppe Galletta ,Maurizio D'alessandro , Giancarlo Farisato , Luigi Lessio , Giuseppina Micela , Daniela Billi
4) Preparing EChO space mission: laboratory simulation of planetary atmospheres, SPIE, MONTREAL 2014
Riccardo U. Claudi, Marco Sergio Erculiani, Giuseppina Micela, Maurizio D’Alessandro, Giuseppe Galletta, Enrico Giro, Alberto Adriani, Francesca Altieri, Giancarlo
Bellucci, Daniela Billi, Cesare Cecchi-Pestellini, Angela Ciaravella, Gianrico Filacchione, Gabriella Gilli, Marco Giuranna, Davide Grassi, Giuseppe Leto, Emanuele Pace,
Maria Elisabetta Palumbo, Giuseppe Piccioni, Salvatore Scuderi, Giovanni Strazzulla, Diego Turrini
5) A tunable integrated system to simulate colder stellar radiation, SPIE 2015, PRAGA
Marco S. Erculiani, Riccardo U. Claudi, Lorenzo Cocola, Diego Barbisan, Matteo Bonato, Matteo Meneghini, Nicola Trivellin
6) Simulating Super Earth Atmospheres in the Laboratory
Journal: International Journal of Astrobiology, Manuscript ID: IJA-SI-EB2014-14-0533.R1, Special Issue EB2014
Claudi, Riccardo; Erculiani, Marco Sergio; Billi, Daniela; Pace, Emanuele; Schierano, Deborah; Giro, Erico; Galletta, Giuseppe; D'Alessandro, Maurizio
7) Search for spectral features in transiting planets with GAPS project
Journal: International Journal of Astrobiology, Manuscript ID: IJA-SI-EB2014-14-0530, Special Issue EB2014
Date Submitted by the Author: 09-May-2014
Benatti, Serena; Claudi, Riccardo; Borsa, Francesco; Garrido Rubio, Antonio; Erculiani, Marco Sergio; Bonavita, Mariangela; Bignamini, Andrea; Covino, Elvira; Desidera,
Silvano; Gratton, Raffaele; Lanza, Antonino; Maggio, Antonio; Micela, Giuseppina; Pagano, Isabella; Piotto, Giampaolo; Poretti, Ennio; Sozzetti, Alessandro;
8) Biosignature Characterization: from Lab to Space,
40th COSPAR Scientific Assembly. Held 2-10 August 2014, in Moscow, Russia, Abstract B0.6-8-14.
Schierano, Debora; Baqué, Mickael; Billi, Daniela; Pace, Emanuele; Cestelli Guidi, Mariangela; Claudi, Riccardo; Verseux, Cyprien; Erculiani, Marco Sergio