Hubble Tarantula Treasury Project V. The star cluster Hodge 301: the old face of 30 Doradus

Abstract

Based on color-magnitude diagrams (CMDs) from the Hubble Space Telescope Hubble Tarantula Treasury Project (HTTP) survey, we present the star formation history (SFH) of Hodge~301, the oldest star cluster in the Tarantula Nebula. The HTTP photometry extends faint enough to reach, for the first time, the cluster pre-main sequence (PMS) turn-on, where the PMS joins the main sequence. Using the location of this feature, along with synthetic CMDs generated with the latest PARSEC models, we find that Hodge~301 is older than previously thought, with an age between 26.5 and 31.5 Myr. From this age, we also estimate that between 38 and 61 supernovae Type-II exploded in the region. The same age is derived from the main sequence turn-off, whereas the age derived from the post-main sequence stars is younger and between 20 and 25 Myr. Other relevant parameters are a total stellar mass of $\approx 8800\pm 800$M${}_{\odot }$ and average reddening E(B$-$V) $\approx 0.22-0.24$ mag, with a differential reddening $\delta$E(B$-$V)$\approx 0.04$ mag.

accepted for publication in ApJ

References in corpus (8)

• An eclipsing binary distance to the Large Magellanic Cloud accurate to 2 per cent
• New PARSEC evolutionary tracks of massive stars at low metallicity: testing canonical stellar evolution in nearby star forming dwarf galaxies
• The influence of chemical composition on the properties of Cepheid stars. II-The iron content
• The VLT-FLAMES survey of massive stars: atmospheric parameters and rotational velocity distributions for B-type stars in the Magellanic Clouds
• The M-dwarfs in Multiples (MinMs) survey - I. Stellar multiplicity among low-mass stars within 15 pc
• The VLT-FLAMES Tarantula Survey XIX. B-type Supergiants - Atmospheric parameters and nitrogen abundances to investigate the role of binarity and the width of the main sequence
• The VLT-FLAMES Tarantula Survey XVIII. Classifications and radial velocities of the B-type stars
• NGC 346 in the Small Magellanic Cloud. III. Recent Star Formation and Stellar Clustering Properties in the Bright HII Region N 66

Cited by in corpus (13)

• The VLT-FLAMES Tarantula Survey. XXX. Red stragglers in the clusters Hodge 301 and SL 639
• Star formation histories of the LEGUS dwarf galaxies (III): the non-bursty nature of 23 star forming dwarf galaxies
• Photometric determination of the mass accretion rates of pre-main sequence stars. V. Recent star formation in the 30 Dor nebula
• The VLT-FLAMES Tarantula Survey: XXXI. Radial velocities and multiplicity constraints of red supergiant stars in 30 Doradus
• Multiplicity of the red supergiant population in the young massive cluster NGC 330
• The B-type Binaries Characterisation Programme II. VFTS 291: A stripped star from a recent mass transfer phase
• Clues to the formation of Liller 1 from modeling its complex star formation history
• Star Formation Histories of the LEGUS Spiral Galaxies. I. The flocculent spiral NGC 7793
• NGC1818 unveils the origin of the extended main-sequence turn-off in young Magellanic Clouds clusters
• VLT/X-shooter spectroscopy of massive young stellar objects in the 30 Doradus region of the Large Magellanic Cloud
• Ultraviolet extinction properties of the 30 Dor Nebula and interpreting observations of starburst clusters
• Measuring Young Stars in Space and Time -- I. The Photometric Catalog and Extinction Properties of N44
• Dense clumps survive in the vicinity of R136 in 30 Doradus