Caught in the act
eso_potw1935a September 2nd, 2019
Credit: ESO/ R. Leaman/ D. Gadotti/ K. Sandstrom/ D. Calzetti
NGC 3351, also known as Messier 95, was first discovered in 1781 by Pierre Méchain, a French astronomer and surveyor who worked alongside Charles Messier. NGC 3351 is a type of galaxy known as a barred spiral galaxy and it is located in the constellation of Leo (The Lion). New observations of this object have shown stellar feedback in action. Stellar feedback is the process of redistributing energy into the interstellar medium (the space in between the stars) within star-forming galaxies. In this particular galaxy, star formation is occurring in the ring surrounding the galaxy nucleus at such a violent rate that massive bubbles of hot gas can actually be seen being ejected. This ejected gas can then contribute (both positively and negatively) to ongoing star formation within the galaxy. The data for this observation were taken with ALMA, the NASA/ESA Hubble Space Telescope and the Very Large Telescope, showing once again that scientific collaboration across multiple facilities can produce some wonderful results.
Provider: European Southern Observatory
Image Source: https://www.eso.org/public/images/potw1935a/
Curator: European Southern Observatory, Garching bei München, None, Germany
Image Use Policy: Creative Commons Attribution 4.0 International License
-
View Options
Download Options
-
Full Size Image
(1517 x 1517)
Source TIFF (3.93 MB)
- Additional Sizes (JPG)
- 320 x 320 (36.8 KB)
- 1023 x 1024 (230 KB)
- 499 x 500 (66.4 KB)
- 1280 x 1280 (349 KB)
Image Details
Position Details
Color Mapping
| Telescope | Spectral Band | Wavelength | |
|---|---|---|---|
|
Hubble (WFC3) | Optical (I) | 814.0 nm |
|
VLT (MUSE) | Optical (H-alpha) | 656.0 nm |
|
ALMA (Band 3) | Millimeter (12CO (1-0)) | 2.6 mm |
|
Hubble (WFC3) | Ultraviolet (UV) | 275.0 nm |
|
|
Hubble (WFC3) | Optical (U) | 336.0 nm |
|
|
Hubble (WFC3) | Optical (B) | 438.0 nm |
|
Hubble (WFC3) | Infrared (V) | 555.0 nm |
- ID
- potw1935a
- Subject Category
- C.5.1.1
- Subject Name
- Messier 95
- Credits
- ESO/ R. Leaman/ D. Gadotti/ K. Sandstrom/ D. Calzetti
- Release Date
- 2019-09-02T06:00:00
- Lightyears
- Redshift
- Reference Url
- https://www.eso.org/public/images/potw1935a/
- Type
- Observation
- Image Quality
- Distance Notes
- Facility
- Hubble Space Telescope, Very Large Telescope, Atacama Large Millimeter/submillimeter Array, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
- Instrument
- WFC3, MUSE, Band 3, WFC3, WFC3, WFC3, WFC3
- Color Assignment
- Red, Orange, Blue, Purple, Blue, Blue, Green
- Band
- Optical, Optical, Millimeter, Ultraviolet, Optical, Optical, Infrared
- Bandpass
- I, H-alpha, 12CO (1-0), UV, U, B, V
- Central Wavelength
- 814, 656, 2600784, 275, 336, 438, 555
- Start Time
- Integration Time
- Dataset ID
- None, None, None, None, None, None, None
- Notes
- Coordinate Frame
- ICRS
- Equinox
- J2000
- Reference Value
- 160.990903683, 11.70341718
- Reference Dimension
- 1517.0, 1517.0
- Reference Pixel
- 758.5, 758.5
- Scale
- -1.10082889308e-05, 1.10082889308e-05
- Rotation
- -0.9800000000000002
- Coordinate System Projection:
- TAN
- Quality
- Full
- FITS Header
- Notes
- Creator (Curator)
- European Southern Observatory
- URL
- http://www.eso.org
- Name
- Telephone
- Address
- Karl-Schwarzschild-Strasse 2
- City
- Garching bei München
- State/Province
- None
- Postal Code
- D-85748
- Country
- Germany
- Rights
- Creative Commons Attribution 4.0 International License
- Publisher
- European Southern Observatory
- Publisher ID
- eso
- Resource ID
- potw1935a
- Resource URL
- https://www.eso.org/public/archives/images/original/potw1935a.tif
- Related Resources
- Metadata Date
- 2018-09-26T11:42:09+02:00
- Metadata Version
- 1.1
Detailed color mapping information coming soon...
