File:UGC 1810 and UGC 1813 in Arp 273 (captured by the Hubble Space Telescope).jpg
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[edit]DescriptionUGC 1810 and UGC 1813 in Arp 273 (captured by the Hubble Space Telescope).jpg |
العربية: هذه الصورة المُلتقطة بواسطة مرصد هابل الفضائي تُظهرُ مجموعة من المجرَّات المُتداخلة تُدعى Arp 273. أكبرُالمجرَّات الحلزونيَّة، المعروفة باسم UGC 1810، تتمتَّعُ بقرصٍ يخضع لعمليَّة مدٍّ وجزرٍ من الانحراف فيتشوَّه شكله ليُصبح أشبه بالوردة بسبب جاذبيَّة المجرَّة القرينة أسفله، المعروفة باسم UGC 1813. تظهرُ رُقعة من الدُرَّات الزرقاء عبر أعلى الصورة، وهي عبارة عن مجموعة من الأضواء المُنبعثة من عناقيد نجميَّة زرقاء فتيَّة ومُلتهبة. هذه النجوم الضخمة تلمع بقُوَّة باعثةً ضوء فوق بنفسجي.
يُظهرُ الضوء المُنبعث من الطرف تقريبًا، علاماتٍ مُميَّزة تدُلُّ على وجود عنقودٍ نجميّ في وسطه، ولعلَّ ما يحثُّ هذا الضوء على الانبعاث هو التلاقي مع المجرَّة القرينة. تُظهرُ سلسلة من الأنماط الحلزونيَّة في المجرَّة الكُبرى دليلًا على حصول تفاعل. يبدو الذراع الأكبر الخارجي بشكلٍ حلقيّ جُزئيًّا، وهي ظاهرة تبدو للناظر عندما تتداخل المجرَّات المُتفاعلة مع بعضها البعض. هذا يُفيدُ باحتماليَّة غوص المجرَّة القرينة الأصغر عميقًا، خارج المركز، وعبر مجرَّة UGC 1810. المجمعة الداخليَّة من الأذرع اللولبيَّة مُشوَّهة ومُنعطفة خارج السطح المجرّي حيثُ يظهر أحد الأذرع خارج الكُتلة المركزيَّة ثُمَّ يعود ليلتف من الجهة الأُخرى. ولا يزال العُلماء يتسائلون عن كيفيَّة اتصال هذين النمطين اللولبيين. يُحتملُ ظهور لولبيَّة صغيرة ضمن الأذرع اللولبيَّة لمجرَّة UGC 1810 في أعلى اليمين. يُلاحظُ كيف أنَّ الذراع اللولبي الأكثر تطرُّفًا يُغيَّر هيئته أثناء عُبوره في المجرَّة الثالثة، فيتحوَّل من المصقول السويّ ذي النجوم العتيقة (مُحمرَّة اللون) على إحدى الجهات إلى المُلتف ذي النجوم قاتمة الزُرقة على الطرف الآخر. يُمكنُ التكهّن بالمُباعدة الطبيعيَّة بين العُقد المُكوِّنة للنجوم الزرقاء بناءً على عدم استقرار كميَّة الغاز المحفوظة ضمن الذراع، كما يظهر أنَّها تتطابق مع ما يظهر في الأذرع اللولبيَّة الخاصَّة بمجرَّاتٍ أُخرى. المجرَّةُ الأكبر الواقعة ضمن زوج UGC 1810 - UGC 1813 تتمتَّعُ بكُتلةٍ تفوقُ كُتلة المجرَّات الأصغر بحوالي خمس مرَّات. في الأزواج اللامُتساوية مثل هذه، يُنتجُ العبور السريع لمجرَّةٍ قرينة البُنية المُتباينة أو اللامُتماثلة في اللولبيَّة الرئيسيَّة. أيضًا في مثل هكذا أحداث، يبدأُ الانفجار النجمي نمطيًّا في المجرَّات الصُغرى قبل تلك الكُبرى. يُمكنُ لهذه التأثيرات أن تكون بسبب استهلاك المجرَّات الصُغرى لكميَّةٍ أقل من الغاز الموجود في مركزها، الذي تتولَّد منه النجوم الجديدة. تقعُ مجموع Arp 273 ضمن كوكبة المرأة المُتسلسلة وهي تبعُد حوالي 300 مليون سنة ضوئيَّة عنالأرض. تُظهرُ الصورة جسرًا مديًّا واهيًا من المواد بين المجرَّتين التي تفصلُ بينهما عشراتُ آلاف السنوات الضوئيَّة. تمَّ تصوير هذا التقاطع يوم 17 كانون الأوَّل (ديسمبر) سنة 2010م، باستخدام الكاميرا واسعة المجال رقم 3 (WFC3) الخاصَّة بمرصد هابل الفضائي. هذه الصورة الخاصَّة بهابل هي عبارة عن مجموعةِ من البيانات الممزوجة وا��مأخوذة بواسطة مُرشحات موجودة على الكاميرا سالفة الذِكر تسمحُ بعبور مجالٍ واسع من الموجات الإشعاعيَّة تُغطي الأجزاء الفوق بنفسجيَّة، والزرقاء، والحمراء للطيف.English: This Hubble Space Telescope image shows a group of interacting galaxies called Arp 273. The larger of the spiral galaxies, known as UGC 1810, has a disk that is tidally distorted into a rose-like shape by the gravitational tidal pull of the companion galaxy below it, known as UGC 1813. A swath of blue jewels across the top is the combined light from clusters of intensely bright and hot young blue stars. These massive stars glow fiercely in ultraviolet light.
The smaller, nearly edge-on companion shows distinct signs of intense star formation at its nucleus, perhaps triggered by the encounter with the companion galaxy. A series of uncommon spiral patterns in the large galaxy is a tell-tale sign of interaction. The large, outer arm appears partially as a ring, a feature seen when interacting galaxies actually pass through one another. This suggests that the smaller companion actually dived deep, but off-center, through UGC 1810. The inner set of spiral arms is highly warped out of the plane with one of the arms going behind the bulge and coming back out the other side. How these two spiral patterns connect is still not precisely known. A possible mini-spiral may be visible in the spiral arms of UGC 1810 to the upper right. It is noticeable how the outermost spiral arm changes character as it passes this third galaxy, from smooth with lots of old stars (reddish in color) on one side to clumpy and extremely blue on the other. The fairly regular spacing of the blue star-forming knots fits with what is seen in the spiral arms of other galaxies and is predictable based on instabilities in the gas contained within the arm. The larger galaxy in the UGC 1810 - UGC 1813 pair has a mass that is about five times that of the smaller galaxy. In unequal pairs such as this, the relatively rapid passage of a companion galaxy produces the lopsided or asymmetric structure in the main spiral. Also in such encounters, the starburst activity typically begins in the minor galaxies earlier than in the major galaxies. These effects could be due to the fact that the smaller galaxies have consumed less of the gas present in their nucleus, from which new stars are born. Arp 273 lies in the constellation Andromeda and is roughly 300 million light-years away from Earth. The image shows a tenuous tidal bridge of material between the two galaxies that are separated by tens of thousands of light-years from each other. The interaction was imaged on December 17, 2010, with Hubble's Wide Field Camera 3 (WFC3). This Hubble image is a composite of data taken with three separate filters on WFC3 that allow a broad range of wavelengths covering the ultraviolet, blue, and red portions of the spectrum.Français : Image réalisée par le télescope spatial Hubble montrant Arp 273, un couple de galaxies en interaction situées à environ 300 millions d'années-lumière de la Terre, dans la constellation d'Andromède.
Polski: Wykonana za pomocą teleskopu Hubble’a fotografia pary oddziałujących na siebie galaktyk znanej jako Arp 273 położonej 300 milionów lat świetlnych od Ziemi w gwiazdozbiorze Andromedy.
Български: Снимка, направена от телескопа Хъбъл, показваща Arp 273 - двойка взаимодействащи си галактики, разположени в съзвездието Андромеда, на разстояние 300 млн. светлинни години от Земята.
Čeština: Snímek z Hubbleova vesmírného dalekohledu skupiny interagujících galaxií Arp 273 ve vzdálenosti 300 milionů světelných let v souhvězdí Andromedy.
Español: Arp 273, un grupo de galaxias que se encuentra a una distancia de 300 millones de años luz en la constelación de Andrómeda. Imagen del telescopio espacial Hubble.
Magyar: A Hubble űrtávcső felvétele a 300 millió fényévre fekvő Arp 273 galaxiscsoportról az Andromeda csillagképben
Italiano: Immagine, ripresa dal Telescopio spaziale Hubble, di Arp 273, una coppia di galassie interagenti distante 300 milioni di anni luce e situata in direzione della costellazione di Andromeda.
Nederlands: Met de ruimtetelescoop Hubble gemaakte opname van Arp 273, een groep sterrenstelsels die zich op een afstand van 300 miljoen lichtjaar in het sterrenbeeld Andromeda bevindt
Português: Arp 273, um grupo de galáxias que se encontra a uma distância de 300 milhões de anos-luz da Terra, na constelação de Andrômeda. Imagem do telescópio espacial Hubble. |
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Author | NASA, ESA, and the Hubble Heritage Team (STScI/AURA) | ||||
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This image was selected as picture of the day on Wikimedia Commons for 14 June 2017. It was captioned as follows: English: Hubble Space Telescope image of Arp 273, a group of interacting galaxies, lying 300 million light years away in the constellation Andromeda. Other languages:
Čeština: Snímek z Hubbleova vesmírného dalekohledu skupiny interagujících galaxií Arp 273 ve vzdálenosti 300 milionů světelných let v souhvězdí Andromedy. English: Hubble Space Telescope image of Arp 273, a group of interacting galaxies, lying 300 million light years away in the constellation Andromeda. Español: Arp 273, un grupo de galaxias que se encuentra a una distancia de 300 millones de años luz en la constelación de Andrómeda. Imagen del telescopio espacial Hubble. Français : Image réalisée par le télescope spatial Hubble montrant Arp 273, un couple de galaxies en interaction situées à environ 300 millions d'années-lumière de la Terre, dans la constellation d'Andromède. Italiano: Immagine, ripresa dal Telescopio spaziale Hubble, di Arp 273, una coppia di galassie interagenti distante 300 milioni di anni luce e situata in direzione della costellazione di Andromeda. Magyar: A Hubble űrtávcső felvétele a 300 millió fényévre fekvő Arp 273 galaxiscsoportról az Andromeda csillagképben Nederlands: Met de ruimtetelescoop Hubble gemaakte opname van Arp 273, een groep sterrenstelsels die zich op een afstand van 300 miljoen lichtjaar in het sterrenbeeld Andromeda bevindt Polski: Wykonana za pomocą teleskopu Hubble’a fotografia pary oddziałujących na siebie galaktyk znanej jako Arp 273 położonej 300 milionów lat świetlnych od Ziemi w gwiazdozbiorze Andromedy. Português: Arp 273, um grupo de galáxias que se encontra a uma distância de 300 milhões de anos-luz da Terra, na constelação de Andrômeda. Imagem do telescópio espacial Hubble. Български: Снимка, направена от телескопа Хъбъл, показваща Arp 273 - двойка взаимодействащи си галактики, разположени в съзвездието Андромеда, на разстояние 300 млн. светлинни години от Земята. |
This image was selected as picture of the day on Bengali Wikipedia.
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Annotations InfoField | This image is annotated: View the annotations at Commons |
interaction deux galaxies
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current | 15:23, 14 June 2017 | 7,887 × 7,994 (62.65 MB) | Dokurrat (talk | contribs) | Reverted to version as of 09:44, 24 April 2011 (UTC): undo bot maloperation. | |
22:00, 20 April 2017 | 7,887 × 7,992 (65.56 MB) | SteinsplitterBot (talk | contribs) | Bot: Image rotated by 270° | ||
14:00, 15 April 2017 | 7,992 × 7,887 (65.55 MB) | SteinsplitterBot (talk | contribs) | Bot: Image rotated by 90° | ||
09:44, 24 April 2011 | 7,887 × 7,994 (62.65 MB) | Tryphon (talk | contribs) | {{Information |Description=The larger of the spiral galaxies, known as UGC 1810, has a disk that is tidally distorted into a rose-like shape by the gravitational tidal pull of the companion galaxy below it, known as UGC 1813. A swath of blue jewels across |
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