Invited review abstract
Near-IR & X-ray Observations of the Serpens Cloud
Abstract
Here I will present the results of a combined study in the near-IR and X-rays of the Serpens North and South young star forming regions. Both Serpens North and South are nearby regions of embedded star formation, located in the Gould Belt.
The near-IR observations were obtained using WIRCAM on CFHT, covering the Y, J, H, Ks and methane bands. These data were combined with observations in X-rays taken with ACIS-I on Chandra.
While the infrared wavelengths are sensitive to circumstellar excess, the X-rays allow us to identify diskless Class III members of the cluster. Further, faint brown dwarfs can be identified in the near-IR, providing an insight into the very low mass population of these two regions.
The distance to the clusters has recently been brought into debate, with the most commonly accepted distance of 260pc falling short of the distance obtained using the X-ray Luminosity Function of 360pc, and the parallax measurment to one YSO of 410pc.
I will present the XLF to the North region, showing how a greater distance of 360pc better fits both the X-ray and spectral data.
The near-IR observations were obtained using WIRCAM on CFHT, covering the Y, J, H, Ks and methane bands. These data were combined with observations in X-rays taken with ACIS-I on Chandra.
While the infrared wavelengths are sensitive to circumstellar excess, the X-rays allow us to identify diskless Class III members of the cluster. Further, faint brown dwarfs can be identified in the near-IR, providing an insight into the very low mass population of these two regions.
The distance to the clusters has recently been brought into debate, with the most commonly accepted distance of 260pc falling short of the distance obtained using the X-ray Luminosity Function of 360pc, and the parallax measurment to one YSO of 410pc.
I will present the XLF to the North region, showing how a greater distance of 360pc better fits both the X-ray and spectral data.