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VLT sjónauki ESO tekur fyrstu staðfestu ljósmyndina af nýmyndaðri reikistjörnu
Litrófsmælingar sýna skýjaðan lofthjúp
SPHERE reikistjörnuleitartækið á Very Large Telescope ESO hefur tekið fyrstu staðfestu ljósmyndina af reikistjörnu í mótun í rykskífu í kringum nýfædda stjörnu. Reikistjarnan unga plægir sig í gegnum gas- og rykskífu stjörnunnar PDS 70 og benda mælingar til þess að lofthjúpur hennar sé skýjaður.
Alþjóðlegt teymi stjörnufræðinga undir forystu hóps við Max Planck Institute for Astronomy í Heidelberg í Þýskalandi, náði einstakri mynd af reikistjörnu í mótun í kringum unga dvergstjörnu sem kallast PDS 70. Með SPHERE mælitækinu á Very Large Telescope (VLT) ESO — sem er eitt öflugasta reikistjörnuleitartæki heims — sáu stjörnufræðingarnir hvernig reikistjarnan unga, PDS 70b, plægir sig í gegnum efnisskífuna sem umlykur stjörnuna [1].
SPHERE mælitækið gerði stjörnufræðingunum ennfremur kleift að mæla birtu reikistjörnunnarí mismunandi bylgjulengdum sem gaf upplýsingar um lofthjúpinn.
Reikistjarnan kemur bersýnilega fram í mælingunum. Hún sést sem bjartur blettur við hliðina á svartri miðju myndarinnar. Reikistjarnan er um það bil þrjá milljarða kílómetra frá stjörnunni í miðjunni, nokkurn veginn jafn langt frá móðurstjörnunni sinni og Úranus er frá sólinni okkar. Mælingarnar sýna að PDS 70b er gasrisi, nokkrum sinnum efnismeiri en Júpíter. Yfirborðshitastig hennar er í kringum 1000°C svo hún er mun heitari en nokkur reikistjarna í sólkerfinu okkar.
Dökka svæðið á miðri mynd er vegna kórónusjáar, nokkurs konar grímu sem hylur ljósið frá stjörnunni í miðjunni og gerir stjörnufræðingum kleift að sjá skífuna og plánetuna sem eru mun daufari. Án kórónusjárinnar myndi reikistjarnan hverfa í glýju stjörnunnar sjálfrar.
„Skífurnar eru myndunarstaðir reikistjarna en hingað til hafa sárafáar mælingar leitt í ljós ungar reikistjörnur í þeim,“ sagði Miriam Keppler sem hafði umsjón með mælingunum. „Til þessa hefur vandinn verið sá að flestar hugsanlegar reikistjörnur gætu allt eins hafa verið myndanir í skífunum.“
Uppgötvun reikistjörnunnar ungu er afar spennandi og hefur þegar leitt til frekari rannsókna. Annar hópur stjörnufræðinga, sem Keppler og margir aðrir sem komu að uppgötvuninni upphaflega tilheyra líka, hefur undanfarna mánuði rannsakað reikistjörnuna betur. Útkoman er ekki aðeins sú glæsilegam mynd sem hér sést, heldur tókst þeim líka að gera litrófsmælingum af reikistjörnunni. Greining á litrófinu sýnir að lofthjúpurinn er skýjaður.
Reikistjarnan PDS 70b hefur myndað geil í skífunni. Geilar af þessu tagi hafa lengi veirð þekktar og talið að þær myndist af völdum reikistjörnu. Þetta er aftur á móti í fyrsta sinn við höfum komið auga á reikistjörnu í geil.
„Niðurstöður Kepplers sýnir vel fyrstu stigin í þróun reikistjarna en þau eru flókin og torskilin,“ sagði André Müller sem hafði umsjón með mælingum seinni hópsins. „Við urðum að gera mælingar á reikistjörnunni í skífunni til að skilja betur ferlin sem liggja að baki myndun hennar.“ Þegar stjörnufræðingarnir höfðu komist að helstu eiginleikum reikistjörnunnar var hægt að prófa kennileg líkön sem reyna að skýra myndun reikistjarna.
Það er greinigæðum SPHERE mælitækisins að þakka að unnt var að sjá reikistjörnuna í rykskífunni en tækið rannsakar fjarreikistjörnur og skífur í kringum nálægar stjörnur með aðferð sem kallast ljósmyndun í háum kontrast. Það er gríðarlega vandasamt, jafnvel þótt ljósið frá móðurstjörnunni sé hulið með kórónusjá því beita þarf ákveðinni mælitækni og gagnavinnslu til að sía ljósið frá reikistjörnunum [2] í mismunandi bylgjulengdum
„Eftir meira en áratugalanga vinnu við að smíða þetta tækniundur hefur SPHERE nú gert okkur kleift að uppskera eins og við sáðum með því að uppgötva unga reikistjörnu,“ sagði Thomas Henning, yfirmaður Max Planck Institute for Astronomy og umsjónarmaður hópanna tveggja, að lokum.
[1] Myndirnar af skífunni og reikistjörnunni voru teknar og litrófinu aflað í tveimur rannsóknarverkefnum sem kallast SHINE (SpHere INfrared survey for Exoplanets) og DISK (sphere survey for circumstellar DISK). SHINE snýst um að taka myndir af 600 ungum, nálægum stjörnum í nær-innrauðu ljósi í hárri upplausn og háum kontrast með SPHERE til að finna og greina nýjar fjarreikistjörnur og sólkerfi. DISK kannar þekkt, ung sólkerfi og sólkerfisskífur þeirra til að rannsaka upphafsaðstæður við myndun reikistjarna og þróun sólkerfa.
[2] Til að fanga daufa birtu reikistjörnunnar næst stjörnunni björtu notuðu stjörnufræðingar aðferð sem nýtir snúning jarðar. Þegar mælingarnar voru gerðar tók SPHERE myndir samfleytt í nokkrar klukkustundir á meðan tækinu var haldið eins stöðugu og hægt er. Fyrir vikið virðist reikistjarnan snúast lítillega, löturhægt, og breyta um staðsetningu á myndinni miðað við skífuna í kringum stjörnuna. Með reikniritum var myndunum skeytt saman svo allir hlutar hennar virðast ekki vera að færast á meðan mælingum stóð, eins og merkið frá stjörnunni sjálfr. Þetta skilur aðeins eftir það sem virðist hreyfast og gerir reikistjörnuna sýnilega.
Greint er frá niðurstöðum rannsóknanna í greinunum „Discovery of a planetary-mass companion within the gap of the transition disk around PDS 70“ og „Orbital and atmospheric characterization of the planet within the gap of the PDS 70 transition disk“ sem birtast í tímaritinu Astronomy & Astrophysics.
The team behind the discovery paper is composed of  M. Keppler (Max Planck Institute for Astronomy, Heidelberg, Germany), M. Benisty (Univ. Grenoble, France and Unidad Mixta Internacional Franco-Chilena de Astronomía, Chile),  A. Müller (Max Planck Institute for Astronomy, Heidelberg, Germany), Th. Henning (Max Planck Institute for Astronomy, Heidelberg, Germany), R. van Boekel (Max Planck Institute for Astronomy, Heidelberg, Germany), F. Cantalloube (Max Planck Institute for Astronomy, Heidelberg, Germany), C. Ginski (Leiden Observatory, The Netherlands), R.G. van Holstein (Leiden Observatory, The Netherlands), A.-L. Maire (Max Planck Institute for Astronomy, Heidelberg, Germany),  A. Pohl (Max Planck Institute for Astronomy, Heidelberg, Germany), M. Samland (Max Planck Institute for Astronomy, Heidelberg, Germany), H. Avenhaus (Max Planck Institute for Astronomy, Heidelberg, Germany), J.-L. Baudino (Department of Physics, University of Oxford, Oxford, UK), A. Boccaletti (LESIA, Observatoire de Paris, France), J. de Boer (Leiden Observatory, The Netherlands), M. Bonnefoy (Univ. Grenoble, France), S. Desidera (INAF - Osservatorio Astronomico di Padova, Italy),  M. Langlois (Aix Marseille Univ, CNRS, LAM, Marseille, France and CRAL, UMR 5574, CNRS, Université de Lyon, Ecole Normale Supérieure de Lyon, France), C. Lazzoni (INAF - Osservatorio Astronomico di Padova, Italy), N. Pawellek (Max Planck Institute for Astronomy, Heidelberg, Germany), T. Stolker (Institute for Particle Physics and Astrophysics, ETH Zurich, Switzerland), A. Vigan (Aix Marseille Univ, CNRS, LAM, Marseille, France), T. Birnstiel (University Observatory, Faculty of Physics, Ludwig-Maximilians- Universität München, Germany), W. Brandner(Max Planck Institute for Astronomy, Heidelberg, Germany), G. Chauvin (Univ. Grenoble, France and Unidad Mixta Internacional Franco-Chilena de Astronomía, Chile), M. Feldt (Max Planck Institute for Astronomy, Heidelberg, Germany), M. Flock (Jet Propulsion Laboratory, California Institute of Technology, USA and Kavli Institute For Theoretical Physics, University of California, USA), J. Girard(Univ. Grenoble, France and ESO, Chile), R. Gratton (INAF - Osservatorio Astronomico di Padova, Italy), J. Hagelberg (Univ. Grenoble, France), A. Isella (Rice University, Department of Physics and Astronomy, USA), M. Janson (Max Planck Institute for Astronomy, Heidelberg, Germany and  Department of Astronomy, Stockholm University, Sweden), A. Juhasz (Institute of Astronomy, Cambridge, UK), J. Kemmer (Max Planck Institute for Astronomy, Heidelberg, Germany), Q. Kral (LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC, Univ. Paris 06, Univ. Paris Diderot, Sorbonne Paris Cité, France and Institute of Astronomy, Cambridge, UK), A.-M. Lagrange (Univ. Grenoble, France), R. Launhardt (Max Planck Institute for Astronomy, Heidelberg, Germany), G. Marleau (Institut für Astronomie und Astrophysik, Eberhard Karls Universität Tübingen, Germany and Max Planck Institute for Astronomy, Heidelberg, Germany) A. Matter (Université Côte d’Azur, OCA, CNRS, France), F. Ménard (Univ. Grenoble, France), J. Milli (ESO, Chile), P. Mollière (Leiden Observatory, The Netherlands), C. Mordasini (Physikalisches Institut, Universität Bern, Switzerland), J. Olofsson (Max Planck Institute for Astronomy, Heidelberg, Germany, Instituto de Física y Astronomía, Facultad de Ciencias, Universidad de Valparaíso, Chile, and Núcleo Milenio Formación Planetaria - NPF, Universidad de Valparaíso, Chile), L. Pérez (Max-Planck-Institute for Astronomy, Bonn, Germany and Universidad de Chile, Departamento de Astronomia, Chile), P. Pinilla (Department of Astronomy/Steward Observatory, University of Arizona, USA), C. Pinte (Univ. Grenoble, France, UMI-FCA, CNRS/INSU, France (UMI 3386), and Dept. de Astronomía, Universidad de Chile, Chile, and  Monash Centre for Astrophysics (MoCA) and School of Physics and Astronomy, Monash University, Australia), S. Quanz (Institute for Particle Physics and Astrophysics, ETH Zurich, Switzerland), T. Schmidt (LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC, Univ. Paris 06, Univ. Paris Diderot, France), S. Udry (Geneva Observatory, University of Geneva, Switzerland), Z. Wahhaj (ESO, Chile), J. Williams (Institute for Astronomy, University of Hawaii at Manoa, Honolulu, USA), A. Zurlo (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France, Núcleo de Astronomía, Facultad de Ingeniería y Ciencias, Universidad Diego Portales, Chile, Escuela de Ingeniería Industrial, Facultad de Ingeniería y Ciencias, Universidad Diego Portales, Chile), E. Buenzli (Institute for Particle Physics and Astrophysics, ETH Zurich, Switzerland), M. Cudel (Univ. Grenoble, France), R. Galicher (LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC, Univ. Paris 06, Univ. Paris Diderot, France), M. Kasper (ESO, Germany), J. Lannier (Univ. Grenoble, France), D. Mesa (INAF - Osservatorio Astronomico di Padova, Italy and INCT, Universidad De Atacama, Copiapó, Chile), D. Mouillet (Univ. Grenoble, France), S. Peretti (Geneva Observatory, University of Geneva, Switzerland), C. Perrot (LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC, Univ. Paris 06, Univ. Paris Diderot, Sorbonne Paris Cité, France), G. Salter (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France), E. Sissa (INAF - Osservatorio Astronomico di Padova, Italy), F. Wildi (Geneva Observatory, University of Geneva, Switzerland), L. Abe (Université Côte d’Azur, OCA, CNRS, Lagrange, France), J. Antichi (INAF - Osservatorio Astrofisico di Arcetri, Italy), J.-C. Augereau (Univ. Grenoble, France), P. Baudoz (LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC, Univ. Paris 06, Univ. Paris Diderot, Sorbonne Paris Cité, France), J.-L. Beuzit (Univ. Grenoble, France), P. Blanchard (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France), S. S. Brems (Landessternwarte Königstuhl, Zentrum für Astronomie der Universität Heidelberg, Germany),  M. Carle (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France), A. Cheetham (Geneva Observatory, University of Geneva, Switzerland), A. Costille (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France), A. Delboulbé (Univ. Grenoble, France), C. Dominik (Anton Pannekoek Institute for Astronomy, The Netherlands), P. Feautrier (Univ. Grenoble, France), L. Gluck (Univ. Grenoble, France), D. Gisler (Institute for Particle Physics and Astrophysics, ETH Zurich, Switzerland), Y. Magnard (Univ. Grenoble, France), D. Maurel (Univ. Grenoble, France), M. Meyer (Institute for Particle Physics and Astrophysics, ETH Zurich, Switzerland), T. Moulin (Univ. Grenoble, France), T. Buey (LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC, Univ. Paris 06, Univ. Paris Diderot, France), A. Baruffolo (INAF - Osservatorio Astronomico di Padova, Italy), A. Bazzon (Institute for Particle Physics and Astrophysics, ETH Zurich, Switzerland), V. De Caprio (INAF - Osservatorio Astronomico di Capodimonte, Italy), M. Carbillet (Université Côte d’Azur, OCA, CNRS, Lagrange, France), E. Cascone (INAF - Osservatorio Astronomico di Capodimonte, Italy), R. Claudi (INAF - Osservatorio Astronomico di Padova, Italy), K. Dohlen (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France), D. Fantinel (INAF - Osservatorio Astronomico di Padova, Italy), T. Fusco (ONERA (Office National d’Etudes et de Recherches Aérospatiales), France), E. Giro (INAF - Osservatorio Astronomico di Padova, Italy), C. Gry (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France), N. Hubin (ESO, Germany), E. Hugot (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France), M. Jaquet (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France), D. Le Mignant (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France), M. Llored (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France), O. Möller-Nilsson (Max Planck Institute for Astronomy, Heidelberg, Germany), F. Madec (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France), P. Martinez (Université Côte d’Azur, OCA, CNRS, Lagrange, France), L. Mugnier (ONERA (Office National d’Etudes et de Recherches Aérospatiales), France), A. Origné (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France), P. Puget (Univ. Grenoble, France), D. Perret (LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC, Univ. Paris 06, Univ. Paris Diderot, France), J. Pragt (NOVA Optical Infrared Instrumentation Group, Dwingeloo, The Netherlands), F. Rigal (Anton Pannekoek Institute for Astronomy, The Netherlands), R. Roelfsema (NOVA Optical Infrared Instrumentation Group, Dwingeloo, The Netherlands), A. Pavlov (Max Planck Institute for Astronomy, Heidelberg, Germany), C. Petit (ONERA (Office National d’Etudes et de Recherches Aérospatiales), France), G. Rousset (LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC, Univ. Paris 06, Univ. Paris Diderot, France), J. Ramos (Max Planck Institute for Astronomy, Heidelberg, Germany), P. Rabou (Univ. Grenoble, France), S. Rochat (Univ. Grenoble, France), A. Roux (Univ. Grenoble, France), B. Salasnich (INAF - Osservatorio Astronomico di Padova, Italy),C. Soenke (ESO, Germany), E. Stadler (Univ. Grenoble, France), J.-F. Sauvage (ONERA (Office National d’Etudes et de Recherches Aérospatiales), France), M. Suarez ( INAF - Osservatorio Astrofisico di Arcetri, Italy), A. Sevin (LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC, Univ. Paris 06, Univ. Paris Diderot, France), M. Turatto (INAF - Osservatorio Astronomico di Padova, Italy), L. Weber (Geneva Observatory, University of Geneva, Switzerland).
The team behind the characterisation paper consisted of A. Müller (Max Planck Institute for Astronomy, Heidelberg, Germany), M. Keppler (Max Planck Institute for Astronomy, Heidelberg, Germany), Th. Henning (Max Planck Institute for Astronomy, Heidelberg, Germany), M. Samland (Max Planck Institute for Astronomy, Heidelberg, Germany), G. Chauvin (Univ. Grenoble Alpes, France and Unidad Mixta Internacional Franco-Chilena de Astronomía, CNRS/INSU Universidad de Chile, Chile), H. Beust (Univ. Grenoble Alpes, France), A.-L. Maire (Max Planck Institute for Astronomy, Heidelberg, Germany), K. Molaverdikhani (Max Planck Institute for Astronomy, Heidelberg, Germany), R. van Boekel (Max Planck Institute for Astronomy, Heidelberg, Germany),  M. Benisty (Univ. Grenoble Alpes, France and Unidad Mixta Internacional Franco-Chilena de Astronomía, CNRS/INSU Universidad de Chile, Chile), A. Boccaletti (LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC, Univ. Paris 06, Univ. Paris Diderot, France), M. Bonnefoy (Univ. Grenoble Alpes, France), F. Cantalloube (Max Planck Institute for Astronomy, Heidelberg, Germany), B. Charnay (LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC, Univ. Paris 06, Univ. Paris Diderot, France), J.-L. Baudino (Department of Physics, University of Oxford, UK), M. Gennaro (Space Telescope Science Institute, USA), Z. C. Long (Space Telescope Science Institute, USA), A. Cheetham (Geneva Observatory, University of Geneva, Switzerland), S. Desidera (INAF - Osservatorio Astronomico di Padova, Italy), M. Feldt (Max Planck Institute for Astronomy, Heidelberg, Germany), T. Fusco (DOTA, ONERA, Université Paris Saclay, and Aix Marseille Université, CNRS, LAM Marseille, France), J. Girard (Univ. Grenoble Alpes, France and Space Telescope Science Institute, USA), R. Gratton (INAF - Osservatorio Astronomico di Padova, Italy), J. Hagelberg (Institute for Particle Physics and Astrophysics, ETH Zurich, Switzerland), M. Janson (Max Planck Institute for Astronomy, Heidelberg, Germany and Department of Astronomy, Stockholm University, Sweden),  A.-M. Lagrange (Univ. Grenoble Alpes, France), M. Langlois (Aix Marseille Univ, CNRS, LAM, Marseille, France and CRAL, UMR 5574, CNRS, Université de Lyon, Ecole Normale Supérieure de Lyon, France), C. Lazzoni (INAF - Osservatorio Astronomico di Padova, Italy), R. Ligi (INAF-Osservatorio Astronomico di Brera, Italy), F. Ménard (Univ. Grenoble Alpes, France), D. Mesa (INAF - Osservatorio Astronomico di Padova, Italy and INCT, Universidad De Atacama, Copiapó, Atacama, Chile), M. Meyer (Institute for Particle Physics and Astrophysics, ETH Zurich, Switzerland and Department of Astronomy, University of Michigan, USA), P. Mollière (Leiden Observatory, Leiden University, the Netherlands), C. Mordasini (Physikalisches Institut, Universität Bern, Switzerland), T. Moulin (Univ. Grenoble Alpes, France), A. Pavlov (Max Planck Institute for Astronomy, Heidelberg, Germany), N. Pawellek (Max Planck Institute for Astronomy, Heidelberg, Germany and Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Hungary), S. Quanz (Institute for Particle Physics and Astrophysics, ETH Zurich, Switzerland), J. Ramos (Max Planck Institute for Astronomy, Heidelberg, Germany), D. Rouan (LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC, Univ. Paris 06, Univ. Paris Diderot, France), E. Sissa (INAF - Osservatorio Astronomico di Padova, Italy),  E. Stadler (Univ. Grenoble Alpes, France), A. Vigan (Aix Marseille Univ, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, France), Z. Wahhaj (ESO, Chile), L. Weber (Geneva Observatory, University of Geneva, Switzerland), A. Zurlo (Núcleo de Astronomía, Facultad de Ingeniería y Ciencias, Universidad Diego Portales, Chile, Escuela de Ingeniería Industrial, Facultad de Ingeniería y Ciencias, Universidad Diego Portales, Chile).
ESO er fremsta fjölþjóðlega stjörnustöð Evrópu og lang öflugasta stjörnustöð heims. Hún nýtur stuðnings 16 landa: Austurríkis, Belgíu, Tékklands, Danmörku, Finnlands, Frakklands, Þýskalands, Ítalíu, Hollands, Póllands, Portúgals, Spánar, Svíþjóðar, Sviss og Bretlands, auk gestaþjóðarinnar Chile. ESO heldur úti metnaðarfullum verkefnum sem miða að hönnun, smíði og starfsemi öflugra stjörnustöðva á jörðinni sem gera stjörnufræðingum kleift að gera mikilvægar uppgötvanir. ESO leikur líka lykilhlutverk í að efla og skipuleggja samstarf í stjarnvísindarannsóknum. ESO starfrækir þrjár stjörnuathugunarstöðvar í heimsflokki: La Silla, Paranal og Chajnantor. Á Paranalfjalli starfrækir ESO Very Large Telescope, fullkomnustu stjörnusjónauka heims sem notaðir eru til athugana á sýnilegu ljósi og tvo kortlagningarsjónauka. VISTA er stærsti kortlagningarsjónauki veraldar fyrir innrautt ljós og VLT Survey Telescope er stærsti sjónauki heims sem eingöngu er ætlað að kortleggja himinn í sýnilegu ljósi. ESO er stór þátttakandi í ALMA, stærsta stjarnvísindaverkefni heims. Á Cerro Armazones, skammt frá Paranal, er ESO að smíða 39 metra risasjónauka, Extremely Large Telescope eða ELT sem verður „stærsta auga jarðar“.
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Milky Way : Star : Circumstellar Material : Disk : Protoplanetary
SPHERE image of the newborn planet PDS 70b
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Widefield image of the sky around PDS 70
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The dwarf star PDS 70 in the constellation Centaurus
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ESOcast 169 Light: First Confirmed Image of Newborn Planet (4K UHD)
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Zooming in on the orange dwarf star PDS 70 and its newly discovered planet
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