\n\t\t\t\t\t\t\t\tWebb Telescope: A prominent protostar in Perseus\t\t\t\t\t\t\t<\/h1>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<\/div>\n![\"In](\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/11\/webb-esa-potm2311a-4k.jpg?w=1536\")
<\/figure>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n\n\n\nWebb Space Telescope reveals intricate details of the Herbig Haro object 797 (HH 797). <\/figcaption><\/div>\n<\/p><\/div>\n<\/figcaption><\/div>\n<\/p><\/div>\n<\/p><\/div>\nThis new\u00a0Picture of the Month<\/a>\u00a0from the NASA\/ESA\/CSA James Webb Space Telescope reveals intricate details of the Herbig Haro object 797 (HH 797). Herbig-Haro objects are luminous regions surrounding newborn stars (known as protostars), and are formed when stellar winds or jets of gas spewing from these newborn stars form shockwaves colliding with nearby gas and dust at high speeds. HH 797, which dominates the lower half of this image, is located close to the young open star cluster IC 348, which is located near the eastern edge of the Perseus dark cloud complex. The bright infrared objects in the upper portion of the image are thought to host two further protostars.<\/p>\nThis image was captured with Webb\u2019s Near-InfraRed Camera (NIRCam<\/a>). Infrared imaging is powerful in studying newborn stars and their outflows, because the youngest stars are invariably still embedded within the gas and dust from which they are formed. The infrared emission of the star\u2019s outflows penetrates the obscuring gas and dust, making Herbig-Haro objects ideal for observation with Webb\u2019s sensitive infrared instruments. Molecules excited by the turbulent conditions, including molecular hydrogen and carbon monoxide, emit infrared light that Webb can collect to visualise the structure of the outflows. NIRCam is particularly good at observing the hot (thousands of degree Celsius) molecules that are excited as a result of shocks.<\/p>\nImage: Protostar in Perseus<\/h2>\n\n\n\n![\"In](\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/11\/webb-esa-potm2311a-4k.jpg?w=2048\")
<\/figure>\nThe NASA\/ESA\/CSA James Webb Space Telescope reveals intricate details of the Herbig Haro object 797 (HH 797). Herbig-Haro objects are luminous regions surrounding newborn stars (known as protostars), and are formed when stellar winds or jets of gas spewing from these newborn stars form shockwaves colliding with nearby gas and dust at high speeds. HH 797, which dominates the lower half of this image, is located close to the young open star cluster IC 348, which is located near the eastern edge of the Perseus dark cloud complex. The bright infrared objects in the upper portion of the image are thought to host two further protostars. This image was captured with Webb\u2019s Near-InfraRed Camera (NIRCam).<\/div>\nESA\/Webb, NASA & CSA, T. Ray (Dublin Institute for Advanced Studies)<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\nUsing ground-based observations, researchers have previously found that for cold molecular gas associated with HH 797, most of the red-shifted gas (moving away from us) is found to the south (bottom right), while the blue-shifted gas (moving towards us) is to the north (bottom left). A gradient was also found across the outflow, such that at a given distance from the young central star, the velocity of the gas near the eastern edge of the jet is more red-shifted than that of the gas on the western edge. Astronomers in the past thought this was due to the outflow\u2019s rotation. In this higher resolution Webb image, however, we can see that what was thought to be one outflow is in fact made up of two almost parallel outflows with their own separate series of shocks (which explains the velocity asymmetries). The source, located in the small dark region (bottom right of center), and already known from previous observations, is therefore not a single but a double star. Each star is producing its own dramatic outflow. Other outflows are also seen in this image, including one from the protostar in the top right of center along with its illuminated cavity walls.<\/p>\n
HH 797 resides directly north of HH 211 (separated by approximately 30 arcseconds), which was the feature of a\u00a0Webb image release<\/a>\u00a0in September 2023.<\/p>\nMedia Contacts<\/h2>\n
Laura\u00a0Betz<\/strong> \u2013 laura.e.betz@nasa.gov<\/a>, Rob Gutro<\/strong>\u2013 rob.gutro@nasa.gov<\/a>
NASA\u2019s \u00a0Goddard Space Flight Center<\/em><\/a>,\u00a0<\/em>, Greenbelt, Md.<\/p>\nBethany Downer \u2013 \u00a0<\/strong>Bethany.Downer@esawebb.org<\/a>
<\/strong>ESA\/Webb Chief Science Communications Officer<\/p>\n<\/p>\nDownloads<\/h2>\n
Download full resolution images for this article<\/a><\/strong> from ESAWebb.org<\/p>\n<\/p>\nRelated Information<\/h2>\n
Star Formation<\/strong><\/a><\/p>\nPiercing the Dark Birthplaces of Massive Stars with Webb<\/a><\/strong><\/p>\nWebb Mission<\/a><\/strong> \u2013 https:\/\/science.nasa.gov\/mission\/webb\/<\/p>\nWebb News<\/a><\/strong> \u2013 https:\/\/science.nasa.gov\/mission\/webb\/latestnews\/<\/p>\nWebb Images<\/a><\/strong> \u2013 https:\/\/science.nasa.gov\/mission\/webb\/multimedia\/images\/<\/p>\n<\/p>\nRelated For Kids<\/h2>\n
What Is a Nebula?<\/strong><\/a><\/p>\nWhat Is a Galaxy?<\/strong><\/a><\/p>\nWhat is the Webb Telescope?<\/strong><\/a><\/p>\nSpacePlace for Kids<\/strong><\/a><\/p>\nEn Espa\u00f1ol<\/h2>\n
Ciencia de la NASA<\/strong><\/a><\/p>\nNASA en espa\u00f1ol\u00a0<\/strong><\/a><\/p>\nSpace Place\u00a0para ni\u00f1os<\/strong><\/a><\/p>\n\n\n\n\nKeep Exploring<\/div>\nRelated Topics<\/h2>\n<\/p><\/div>\n<\/p><\/div>\n\n\t\t\t\t\t<\/p>\n\n
<\/figure>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\nThis new\u00a0Picture of the Month<\/a>\u00a0from the NASA\/ESA\/CSA James Webb Space Telescope reveals intricate details of the Herbig Haro object 797 (HH 797). Herbig-Haro objects are luminous regions surrounding newborn stars (known as protostars), and are formed when stellar winds or jets of gas spewing from these newborn stars form shockwaves colliding with nearby gas and dust at high speeds. HH 797, which dominates the lower half of this image, is located close to the young open star cluster IC 348, which is located near the eastern edge of the Perseus dark cloud complex. The bright infrared objects in the upper portion of the image are thought to host two further protostars.<\/p>\n This image was captured with Webb\u2019s Near-InfraRed Camera (NIRCam<\/a>). Infrared imaging is powerful in studying newborn stars and their outflows, because the youngest stars are invariably still embedded within the gas and dust from which they are formed. The infrared emission of the star\u2019s outflows penetrates the obscuring gas and dust, making Herbig-Haro objects ideal for observation with Webb\u2019s sensitive infrared instruments. Molecules excited by the turbulent conditions, including molecular hydrogen and carbon monoxide, emit infrared light that Webb can collect to visualise the structure of the outflows. NIRCam is particularly good at observing the hot (thousands of degree Celsius) molecules that are excited as a result of shocks.<\/p>\n Using ground-based observations, researchers have previously found that for cold molecular gas associated with HH 797, most of the red-shifted gas (moving away from us) is found to the south (bottom right), while the blue-shifted gas (moving towards us) is to the north (bottom left). A gradient was also found across the outflow, such that at a given distance from the young central star, the velocity of the gas near the eastern edge of the jet is more red-shifted than that of the gas on the western edge. Astronomers in the past thought this was due to the outflow\u2019s rotation. In this higher resolution Webb image, however, we can see that what was thought to be one outflow is in fact made up of two almost parallel outflows with their own separate series of shocks (which explains the velocity asymmetries). The source, located in the small dark region (bottom right of center), and already known from previous observations, is therefore not a single but a double star. Each star is producing its own dramatic outflow. Other outflows are also seen in this image, including one from the protostar in the top right of center along with its illuminated cavity walls.<\/p>\n HH 797 resides directly north of HH 211 (separated by approximately 30 arcseconds), which was the feature of a\u00a0Webb image release<\/a>\u00a0in September 2023.<\/p>\n Laura\u00a0Betz<\/strong> \u2013 laura.e.betz@nasa.gov<\/a>, Rob Gutro<\/strong>\u2013 rob.gutro@nasa.gov<\/a> Bethany Downer \u2013 \u00a0<\/strong>Bethany.Downer@esawebb.org<\/a> Download full resolution images for this article<\/a><\/strong> from ESAWebb.org<\/p>\n<\/p>\n Star Formation<\/strong><\/a><\/p>\n Piercing the Dark Birthplaces of Massive Stars with Webb<\/a><\/strong><\/p>\n Webb Mission<\/a><\/strong> \u2013 https:\/\/science.nasa.gov\/mission\/webb\/<\/p>\n Webb News<\/a><\/strong> \u2013 https:\/\/science.nasa.gov\/mission\/webb\/latestnews\/<\/p>\n Webb Images<\/a><\/strong> \u2013 https:\/\/science.nasa.gov\/mission\/webb\/multimedia\/images\/<\/p>\n<\/p>\n What Is a Nebula?<\/strong><\/a><\/p>\n What Is a Galaxy?<\/strong><\/a><\/p>\n What is the Webb Telescope?<\/strong><\/a><\/p>\n SpacePlace for Kids<\/strong><\/a><\/p>\n Ciencia de la NASA<\/strong><\/a><\/p>\n NASA en espa\u00f1ol\u00a0<\/strong><\/a><\/p>\n Space Place\u00a0para ni\u00f1os<\/strong><\/a><\/p>\nImage: Protostar in Perseus<\/h2>\n
<\/figure>Media Contacts<\/h2>\n
NASA\u2019s \u00a0Goddard Space Flight Center<\/em><\/a>,\u00a0<\/em>, Greenbelt, Md.<\/p>\n
<\/strong>ESA\/Webb Chief Science Communications Officer<\/p>\n<\/p>\nDownloads<\/h2>\n
Related Information<\/h2>\n
Related For Kids<\/h2>\n
En Espa\u00f1ol<\/h2>\n
Related Topics<\/h2>\n<\/p><\/div>\n<\/p><\/div>\n