The young open cluster Trumpler 15 in the Eta Carinae complex

Feinstein, A.; Moffat, A. F. J.; Fitzgerald, Mike

doi:10.1086/112730

Cited by 26 publications

(48 citation statements)

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“…In addition we include the three supergiants listed in Feinstein et al (1980) andFeinstein (1981). For NGC 3324 and NGC 3293, we used Cappa et al (2008) and Evans et al (2005), respectively, with the addition A66, page 2 of 8 of a red supergiant from .…”

Section: Analysis Of the Stellar Populationsmentioning

confidence: 99%

“…The Carina region hosts a large population of very young massive stars at a distance of 2.3 ± 0.1 kpc (Allen & Hillier 1993;Walborn 1995;Smith 2002), including 72 of spectral type O (Smith 2006;Cappa et al 2008), six Wolf-Rayet (WR) stars (van der Hucht 2001), one luminous blue variable (LBV; η Carinae), and three evolved red supergiants (Feinstein et al 1980;Feinstein 1981). The total stellar mass is estimated to be ∼3.7 × 10 4 M (Preibisch et al 2011c), and the total mass of the surrounding gas and dust is ∼2.8 × 10 5 M (Preibisch et al 2011b).…”

Section: Introductionmentioning

confidence: 99%

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Energetic feedback and²⁶Al from massive stars and their supernovae in the Carina region

Voss

Martin

Diehl

et al. 2012

A&A

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Aims. We study the populations of massive stars in the Carina region and their energetic feedback and ejection of 26 Al. Methods. We did a census of the stellar populations in young stellar clusters within a few degrees of the Carina nebula. For each star we estimated the mass, based on the spectral type and the host cluster age. We used population synthesis to calculate the energetic feedback and ejection of 26 Al from the winds of the massive stars and their supernova explosions. We used 7 years of INTEGRAL observations to measure the 26 Al signal from the region. Results. The INTEGRAL 26 Al signal is not significant with a best-fit value of ∼1.5 ± 1.0 × 10 −5 ph cm −2 s −1 , approximately half of the published Compton Gamma Ray Observatory (CGRO) result, but in agreement with the latest CGRO estimates. Our analysis of the stellar populations in the young clusters leads to an expected signal of ∼half the observed value, but the results are consistent within 2σ. We find that the fraction of 26 Al ejected in Wolf-Rayet winds is high, and the observed signal is unlikely to be caused by 26 Al ejected in supernovae alone, indicating a strong wind ejection of 26 Al. Due to the lack of prominent O stars, regions with ages 10 Myr are often neglected in studies of OB associations. We find that in the Carina region such clusters contribute significantly to the stellar mass and the energetics of the region.

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Section: Analysis Of the Stellar Populationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Energetic feedback and²⁶Al from massive stars and their supernovae in the Carina region

Voss

Martin

Diehl

et al. 2012

A&A

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“…A more detailed study has been carried out by Feinstein, Fitzgerald & Moffat (1980), who measure 48 stars in UBVRI using an RCA 1P21 photomultiplier down to V =14. They identify 24 candidate members, and suggest that probably other 12 stars can be members of the cluster.…”

Section: Previous Studiesmentioning

confidence: 99%

A photometric investigation of the young open cluster Trumpler 15

Carraro

2002

Monthly Notices of the Royal Astronomical Society

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In this paper we present and analyze new CCD $UBVRI$ photometry down to $V\approx$21 in the region of the young open cluster Trumpler~15, located in the Carina spiral feature. The cluster is rather compact and has a core radius of about 2$^{\prime}$, which translates in about 1 pc at the distance of the cluster. We provide the first CCD investigation and update its fundamental parameters. We identify 90 candidate photometric members on the base of the position in the color-color and color-magnitude diagrams. This sample allows us to obtain a distance of 2.4$\pm$0.3 kpc from the Sun and a reddening E$(B-V)$=0.52$\pm0.07$. We confirm that the cluster is young, and fix a upper limit of 6 million yrs to its age . In addition, we draw the attention on the lower part of the Main Sequence (MS) suggesting that some stars can be in contracting phase and on a gap in the MS, that we show to be a real feature, the $B1-B5$ gap found in other young open clusters. We finally study in details the extinction toward Trumpler~15 concluding that it is normal and suggesting a value of 2.89$\pm$0.19 for the ratio of total to selective absorption $R_V$.\Comment: 11 pages, 13 eps figures, accepted for publication in MNRA

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“…It is a region of violent star formation. Twelve very young open clusters are placed in the region of Carina Nebula and new ones are forming [5,22] [10]). In such young clusters, stars with spectral types later than B are still in the PMS stage of evolution [8].…”

Section: Open Clusters In the Centrer Of Carina Nebulamentioning

confidence: 99%

Pulsating stars in the region of Carina Nebula

Stȩślicki

2008

J. Phys.: Conf. Ser.

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Abstract. We present the results of a search for pulsating stars in the region of Carina Nebula which includes three very young open clusters: Trumpler 14, 15 and 16. The search was made with the Wide Field Imager (WFI) on the MPG/ESO 2.2-m telescope in La Silla (Chile). In total, about 16,000 stars have been analyzed using classical Fourier techniques. We found over 20 pulsating δ-Scuti type stars in this region. Most of them are probable members of open clusters at the pre-main sequence evolutionary stage.

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The young open cluster Trumpler 15 in the Eta Carinae complex

Cited by 26 publications

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Energetic feedback and²⁶Al from massive stars and their supernovae in the Carina region

Energetic feedback and²⁶Al from massive stars and their supernovae in the Carina region

A photometric investigation of the young open cluster Trumpler 15

Pulsating stars in the region of Carina Nebula

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The young open cluster Trumpler 15 in the Eta Carinae complex

Cited by 26 publications

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Energetic feedback and26Al from massive stars and their supernovae in the Carina region

Energetic feedback and26Al from massive stars and their supernovae in the Carina region

A photometric investigation of the young open cluster Trumpler 15

Pulsating stars in the region of Carina Nebula

Contact Info

Product

Resources

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Energetic feedback and²⁶Al from massive stars and their supernovae in the Carina region

Energetic feedback and²⁶Al from massive stars and their supernovae in the Carina region