Please wait, while we are loading the content...
Please wait, while we are loading the content...
Content Provider | AstroPix |
---|---|
Description | New stars are forming inside this giant cloud of dust and gas as seen in infrared light by NASAs Wide-field Infrared Survey Explorer, or WISE. Sprawling across the constellation Vela is a complex of dark, dense clouds of dust and gas, difficult to detect with telescopes that see only visible light. The complex is called the Vela Molecular Cloud Ridge. This ridge may form part of the edge of the Orion spiral arm spur in the Milky Way Galaxy. Astronomers mapping out the region in radio light in the late 1980s found four distinct regions of the densest gas and named them clouds A, B, C and D. This image takes in the first of those clouds, Vela A. Vela A is about 3,300 light-years away. This image of Vela A covers a region on the sky over 4.5 full Moons wide and over 3 full Moons tall, spanning about 130 light-years in space. The core of the cloud is being excavated by the radiation and winds from hot, young stars. The energy from the new stars is absorbed by the surrounding dust. This hides them from view in visible light, but the heated dust glows in infrared light (seen here in green and red). Sprinkled around Vela A are a few groups of sources that appear very red in this image, and have no known counterparts in visible-light images of the region. Its possible that these may be Young Stellar Objects, which are stars in their very infancy enveloped in dust. The infrared light seen from these baby stars does not come directly from the stars, but rather from the dust around them, which glows as the nascent stars heat it. All four infrared detectors aboard WISE were used to make this mosaic. Color is representational: blue and cyan represent infrared light at wavelengths of 3.4 and 4.6 microns, which is dominated by light from stars. Green and red represent light at 12 and 22 microns, which is mostly light from warm dust. |
Language | English |
Publisher Date | 2011-08-05 |
Access Restriction | Open |
Rights License | Public Domain |
Subject Keyword | Star Formation Nebula Vela A Region |
Content Type | Image |
Educational Role | Student Teacher |
Educational Use | Self Learning Classroom |
Education Level | Any Level/Generic |
Resource Type | Photograph |
Subject | Physics Solar System |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
Sl. | Authority | Responsibilities | Communication Details |
---|---|---|---|
1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |