Home     Getting Started     To Survive in the Universe    
Inhabited Sky
    News@Sky     Astro Photo     The Collection     Forum     Blog New!     FAQ     Press     Login  

UDF 7556



Upload your image

DSS Images   Other Images

Related articles

Stellar Disk Truncations at High z: Probing Inside-Out Galaxy Formation
We have conducted a systematic search for stellar disk truncations indisklike galaxies at intermediate redshift (z<1.1) using the HubbleUltra Deep Field data. We use the position of the truncation as a directestimator of the size of the stellar disk. After accounting for thesurface brightness evolution of the galaxies, our results suggest thatthe radial position of the truncations has increased with cosmic time by~1-3 kpc in the last ~8 Gyr. This result indicates a small to moderate(~25%) inside-out growth of the disk galaxies since z~1.

Submit a new article

Related links

  • - No Links Found -
Submit a new link

Member of following groups:

Observation and Astrometry data

Right ascension:03h32m40.78s
Apparent magnitude:21
Aparent dimensions:0.123′ × 0.105′

Catalogs and designations:
Proper Names   (Edit)

→ Request more catalogs and designations from VizieR