Team StDrNEW DISCOVERY Strottner-Drechsler-Sainty Object 1
A GIGANTIC PLASMA ARC IN THE DIRECTION OF THE ANDROMEDA GALAXY Our international team of amateur astronomers and scientists made a surprising discovery in August 2022. In a cross-national collaboration, the researchers and amateur astronomers studied the newly discovered giant nebula. The arc has an extent of about 1.5 by 0.45 degrees, is only 1.2 degrees from the center of M31, and is located southeast of the main body of the Andromeda galaxy. It may be the largest structure of its kind in the near vicinity in the universe. M31 is undoubtedly one of the most photographed deep sky objects ever. This makes the discovery of such a large structure in close proximity to the galaxy all the more surprising. The exact origin of the [O III] emission is still unclear, but circumstantial evidence points to likely scenarios.
IMPORTANT NOTES The [OIII] emission arc appears extremely bright in the photographs - but it is an extremely faint object that can only be adequately visualized by special subtraction techniques, since the signal in the unprocessed state is almost completely outshone by the light from the galactic halo of M31. - Research on STROTTNER-DRECHSLER-SAINTY OBJECT 1 is still in its infancy. The existence of the [OIII] emission arc could be confirmed beyond doubt. All data, hypotheses, and conclusions are based on knowledge as of January 9, 2023.
THE AUTHORS Marcel Drechsler 1, Xavier Strottner 2, Yann Sainty 3, Robert A. Fesen 4, Stefan Kimeswenger 5, 6,
J. Michael Shull 7, Bray Falls 8, Christophe Vergnes 9, Nicolas Martino 9, Sean Walker 10 1 Èquipe StDr, Bärenstein, Feldstraße 17, 09471 Bärenstein, Germany 2 Èquipe StDr, Montfraze, 01370 Saint Etienne Du Bois, France 3 54000 Nancy, Lorraine, France 4 6127 Wilder Lab, Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire, 03755, USA 5 Institute for Astro- and Particle Physics, University of Innsbruck, Technikerstr. 258, 6020 Innsbruck, Austria 6 Instituto de Astronomia, Universídad Católica del Norte, Av. Angamos 0610, Antofagasta, Chile 7 Department of Astrophysical and Planetary Sciences and CASA, University of Colorado, 389-UCB, Boulder, CO 80309, USA 8 Sierra Remote Observatories, 42120 Bald Mountain Road, Auberry, California, 93602, USA 9 Various amateur observatories, Lorraine, France 10 MDW Sky Survey, New Mexico Skies Observatory, Mayhill, NM 88339, USA
PUBLICATION Drechsler, M. ,Strottner , X., Sainty Y., et al, Research Notes of the American Astronomical Society, Vol. 7, id. 1, (2023) DOI: 10.3847/2515-5172/acaf7e
the M31 [OIII] emission arc /// STROTTNER-DRECHSLER-SAINTY OBJECT 1Team StDr2023-01-09 | NEW DISCOVERY Strottner-Drechsler-Sainty Object 1
A GIGANTIC PLASMA ARC IN THE DIRECTION OF THE ANDROMEDA GALAXY Our international team of amateur astronomers and scientists made a surprising discovery in August 2022. In a cross-national collaboration, the researchers and amateur astronomers studied the newly discovered giant nebula. The arc has an extent of about 1.5 by 0.45 degrees, is only 1.2 degrees from the center of M31, and is located southeast of the main body of the Andromeda galaxy. It may be the largest structure of its kind in the near vicinity in the universe. M31 is undoubtedly one of the most photographed deep sky objects ever. This makes the discovery of such a large structure in close proximity to the galaxy all the more surprising. The exact origin of the [O III] emission is still unclear, but circumstantial evidence points to likely scenarios.
IMPORTANT NOTES The [OIII] emission arc appears extremely bright in the photographs - but it is an extremely faint object that can only be adequately visualized by special subtraction techniques, since the signal in the unprocessed state is almost completely outshone by the light from the galactic halo of M31. - Research on STROTTNER-DRECHSLER-SAINTY OBJECT 1 is still in its infancy. The existence of the [OIII] emission arc could be confirmed beyond doubt. All data, hypotheses, and conclusions are based on knowledge as of January 9, 2023.
THE AUTHORS Marcel Drechsler 1, Xavier Strottner 2, Yann Sainty 3, Robert A. Fesen 4, Stefan Kimeswenger 5, 6,
J. Michael Shull 7, Bray Falls 8, Christophe Vergnes 9, Nicolas Martino 9, Sean Walker 10 1 Èquipe StDr, Bärenstein, Feldstraße 17, 09471 Bärenstein, Germany 2 Èquipe StDr, Montfraze, 01370 Saint Etienne Du Bois, France 3 54000 Nancy, Lorraine, France 4 6127 Wilder Lab, Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire, 03755, USA 5 Institute for Astro- and Particle Physics, University of Innsbruck, Technikerstr. 258, 6020 Innsbruck, Austria 6 Instituto de Astronomia, Universídad Católica del Norte, Av. Angamos 0610, Antofagasta, Chile 7 Department of Astrophysical and Planetary Sciences and CASA, University of Colorado, 389-UCB, Boulder, CO 80309, USA 8 Sierra Remote Observatories, 42120 Bald Mountain Road, Auberry, California, 93602, USA 9 Various amateur observatories, Lorraine, France 10 MDW Sky Survey, New Mexico Skies Observatory, Mayhill, NM 88339, USA
PUBLICATION Drechsler, M. ,Strottner , X., Sainty Y., et al, Research Notes of the American Astronomical Society, Vol. 7, id. 1, (2023) DOI: 10.3847/2515-5172/acaf7eThe most beautiful discoveries of our team 2021- 2022Team StDr2023-01-19 | For many years, our small team of amateur astronomers, consisting of Marcel Drechsler from Germany and Xavier Strottner from France, has been working hard to find previously unknown nebulae in the cosmos. The team has been so successful that almost every corner of the night sky offers an object from the Strottner-Drechsler catalog. In this short video we present the most beautiful objects we could photograph together with our astrophotographer colleagues.
Information about our catalog "StDr" can be found here: planetarynebulae.net/FR/page_np_resultat.php?id=372Der M31 [OIII]-Emissionsbogen /// STROTTNER-DRECHSLER-SAINTY OBJECT 1Team StDr2023-01-09 | NEUE ENTDECKUNG Strottner-Drechsler-Sainty Objekt 1
EIN GIGANTISCHER PLASMABOGEN IN RICHTUNG DER ANDROMEDA-GALAXIE Unser internationales Team von Amateurastronomen und Wissenschaftlern machte im August 2022 eine überraschende Entdeckung. In einer länderübergreifenden Zusammenarbeit untersuchten die Forscher und die Amateurastronomen den neu entdeckten Riesennebel. Der Bogen hat eine Ausdehnung von etwa 1,5 x 0,45 Grad, ist nur 1,2 Grad vom Zentrum von M31 entfernt und befindet sich südöstlich des Hauptkörpers der Andromeda-Galaxie. Es könnte die größte Struktur dieser Art in der näheren Umgebung im Universum sein. M31 ist zweifellos eines der meistfotografierten Deep-Sky-Objekte überhaupt. Umso überraschender ist die Entdeckung einer so großen Struktur in unmittelbarer Nähe der Galaxie. Der genaue Ursprung der [O III]-Emission ist noch unklar, aber die Indizien deuten auf wahrscheinliche Szenarien hin.
WICHTIGE HINWEISE Der [OIII] Emissionsbogen erscheint auf den Fotos extrem hell - es handelt sich jedoch um ein extrem lichtschwaches Objekt, dass nur durch spezielle Subtraktionsverfahren ausreichend sichtbar gemacht werden kann, da das Signal im unbearbeiteten Zustand fast vollständig vom Licht des galaktischen Halos von M31 überstrahlt wird. - Die Forschung zu STROTTNER-DRECHSLER-SAINTY OBJECT 1 steht noch am Anfang. Die Existenz des [OIII] Emissionsbogens konnte zweifelsfrei bestätigt werden. Alle Daten, Hypothesen und Schlussfolgerungen basieren auf dem Erkenntnisstand vom 9. Januar 2023.
DIE AUTOREN Marcel Drechsler 1, Xavier Strottner 2, Yann Sainty 3, Robert A. Fesen 4, Stefan Kimeswenger 5, 6,
J. Michael Shull 7, Bray Falls 8, Christophe Vergnes 9, Nicolas Martino 9, Sean Walker 10 1 Èquipe StDr, Bärenstein, Feldstraße 17, 09471 Bärenstein, Deutschland 2 Èquipe StDr, Montfraze, 01370 Saint Etienne Du Bois, Frankreich 3 54000 Nancy, Lothringen, Frankreich 4 6127 Wilder Lab, Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire, 03755, USA 5 Institut für Astro- und Teilchenphysik, Universität Innsbruck, Technikerstr. 258, 6020 Innsbruck, Österreich 6 Instituto de Astronomia, Universídad Católica del Norte, Av. Angamos 0610, Antofagasta, Chile 7 Department of Astrophysical and Planetary Sciences und CASA, University of Colorado, 389-UCB, Boulder, CO 80309, USA 8 Sierra Remote Observatories, 42120 Bald Mountain Road, Auberry, California, 93602, USA 9 Verschiedene Amateur-Observatorien, Lothringen, Frankreich 10 MDW Sky Survey, New Mexico Skies Observatory, Mayhill, NM 88339, USA
VERÖFFENTLICHUNG Drechsler, M. ,Strottner , X., Sainty Y., et al., Research Notes of the American Astronomical Society, Vol. 7, id. 1, (2023) DOI: 10.3847/2515-5172/acaf7elarc démission [OIII] de M31 /// STROTTNER-DRECHSLER-SAINTY OBJET 1Team StDr2023-01-09 | NOUVELLE DÉCOUVERTE Objet Strottner-Drechsler-Sainty 1
UN GIGANTESQUE ARC DE PLASMA EN DIRECTION DE LA GALAXIE ANDROMÈDE Notre équipe internationale d'astronomes amateurs et de scientifiques a fait une découverte surprenante en août 2022. Dans le cadre d'une collaboration transnationale, les chercheurs et les astronomes amateurs ont étudié la nébuleuse géante nouvellement découverte. L'arc s'étend sur environ 1,5 x 0,45 degré, est situé à seulement 1,2 degré du centre de M31 et se trouve au sud-est du corps principal de la galaxie d'Andromède. Il pourrait s'agir de la plus grande structure de ce type dans les environs immédiats de l'Univers. M31 est sans aucun doute l'un des objets du ciel profond les plus photographiés. La découverte d'une structure aussi grande à proximité immédiate de la galaxie est d'autant plus surprenante. L'origine exacte de l'émission [O III] n'est pas encore claire, mais les indices suggèrent des scénarios probables.
REMARQUES IMPORTANTES L'arc d'émission [OIII] apparaît extrêmement brillant sur les photos - mais il s'agit d'un objet extrêmement faible qui ne peut être suffisamment visible qu'en utilisant des techniques de soustraction spéciales, car le signal est presque entièrement éclipsé par la lumière du halo galactique de M31 lorsqu'il n'est pas traité. - La recherche sur l'OBJET STROTTNER-DRECHSLER-SAINTY 1 n'en est qu'à ses débuts. L'existence de l'arc d'émission [OIII] a été confirmée sans aucun doute. Toutes les données, hypothèses et conclusions sont basées sur l'état des connaissances au 9 janvier 2023.
LES AUTEURS Marcel Drechsler 1, Xavier Strottner 2, Yann Sainty 3, Robert A. Fesen 4, Stefan Kimeswenger 5, 6,
J. Michael Shull 7, Bray Falls 8, Christophe Vergnes 9, Nicolas Martino 9, Sean Walker 10 1 Èquipe StDr, Bärenstein, Feldstraße 17, 09471 Bärenstein, Allemagne 2 Èquipe StDr, Montfraze, 01370 Saint Etienne Du Bois, France 3 54000 Nancy, Lorraine, France 4 6127 Wilder Lab, Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire, 03755, USA 5 Institut d'astrophysique et de physique des particules, Université d'Innsbruck, Technikerstr. 258, 6020 Innsbruck, Autriche 6 Instituto de Astronomia, Universídad Católica del Norte, Av. Angamos 0610, Antofagasta, Chili 7 Department of Astrophysical and Planetary Sciences et CASA, University of Colorado, 389-UCB, Boulder, CO 80309, USA 8 Sierra Remote Observatories, 42120 Bald Mountain Road, Auberry, California, 93602, USA 9 Divers observatoires amateurs, Lorraine, France 10 MDW Sky Survey, Observatoire du ciel du Nouveau-Mexique, Mayhill, NM 88339, États-Unis
PUBLICATION Drechsler, M. ,Strottner , X., Sainty Y., et al, Research Notes of the American Astronomical Society, Vol. 7, id. 1, (2023) DOI : 10.3847/2515-5172/acaf7e