The water trail from the cradle of a young Sun to Earth-like planets

Authors

  • Linda Podio Osservatorio Astrofisico di Arcetri, Florence
  • Claudio Codella University of Florence

DOI:

https://doi.org/10.7203/eutopias.0.18777

Keywords:

Star and planet formation, water, space telescopes

Abstract

Water is a crucial ingredient for the emergence of life. Therefore one of the most intriguing issues in the field of Astro-biology and Astrochemistry is to understand the origin of water on Earth. We know that our oceans contain an amount of water of about 3 tenths of a thousandth of the total Earth mass. However, if we consider also the water below the Earth crust the total amount of water could be up to 10-50 times more. There are many open questions about our precious reservoir of water, for example: When and how did water arrive on Earth? Is our planet a special case or is there water, and possibly life, also in extrasolar planets orbiting other stars in our Galaxy? With more than 1000 exoplanets discovered to date and statistics indicating that every star hosts at least one planet, the search for water in the universe is more and more urgent.

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References

Papers published on astronomical journals: Astronomy & Astrophysics (A&A), Astrophysical Journal (ApJ), Science, and Nature:

Carr, J. S., & Najita , J. R. 2008, Organic Molecules and Water in the Planet Formation Region of Young Circumstellar Disks, Science, 319, 1504

Caselli, P., Keto , E., Bergin, E. A., et al. 2012, First Detection of Water Vapor in a Pre-stellar Core, Astrophysical Journal Letters, 759, L37

Cavalié, T., Feuchtgruber, H., Lellouch, E., et al. 2013, Spatial distribution of water in the stratosphere of Jupiter from Herschel HIFI and PACS observations, Astronomy & Astrophysics, 553, A21

Codella, C., Ceccarelli, C., Nisini, B., et al. 2010, Heavy water around the L1448-mm protostar, Astronomy & Astrophysics, 522, L1

Hartogh , P., Lis, D. C., Boc kel ée-Mor van , D., et al. 2011, Ocean-like water in the Jupiter-family comet 103P/Hartley 2, Nature, 478, 218

Hogerheijde, M. R., Bergin, E. A., Brinch, C., et al. 2011, Detection of the Water Reservoir in a Forming Planetary System, Science, 334, 338

Looney, L. W., Tobin, J. J., & Kwon, W. 2007, A Flattened Protostellar Envelope in Absorption around L1157, Astrophysical Journal Letters, 670, L131

Matsui, T., & Abe, Y. 1986, Impact-induced atmospheres and oceans on earth and Venus, Nature, 322, 526

Nisini, B., Benedettini, M., Codella, C., et al. 2010, Water cooling of shocks in protostellar outflows. Herschel-PACS map of L1157, Astronomy & Astrophysics, 518, L120

Podio , L., Kamp , I., Codella , C., et al. 2013, Water Vapor in the Protoplanetary Disk of DG Tau, Astrophysical Journal Letters, 766, L5

Press releases of ESA-Herschel:

Herschel links Jupiter’s water to comet impact: http:// www.esa.int/Our_Activities/Space_Science/Herschel/ Herschel_links_Jupiter_s_water_to_comet_impact

Large water reservoirs at the dawn of stellar birth: http://www.esa.int/SPECIALS/Herschel/ SEMVAO2S18H_0.html

Herschel detects abundant water in planet-forming disc: http://www.esa.int/Our_Activities/Space_Science/ Herschel/Herschel_detects_abundant_water_in_planet- forming_disc

Did Earth’s oceans come from comets?: http://www.esa. int/Our_Activities/Space_Science/Herschel/Did_ Earth_s_oceans_come_from_comets

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Published

2014-12-28

How to Cite

Podio, L., & Codella, C. (2014). The water trail from the cradle of a young Sun to Earth-like planets. EU-topías. A Journal on Interculturality, Communication, and European Studies, 8, 83–89. https://doi.org/10.7203/eutopias.0.18777
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Issue

VOL. 8 (2014)

Section

DOSSIER

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