Browsing University of Hertfordshire by Author "Peña, Carlos Contreras"

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    • New Eruptive YSOs from SPICY and WISE 

      Peña, Carlos Contreras; Ashraf, M.; Lee, J. E.; Herczeg, G.; Lucas, P. W.; Guo, Z.; Johnstone, D.; Lee, H. G.; Jose, J. (2023-12-28)
      This work presents four high-amplitude variable YSOs (≃3 mag at near-or mid-IR wavelengths) arising from the SPICY catalog. Three outbursts show a duration that is longer than 1 year, and are still ongoing. And additional ...

    • On the incidence of episodic accretion in Class I YSOs from VVV 

      Peña, Carlos Contreras; Lucas, Philip W.; Guo, Zhen; Smith, Leigh (2024-02-01)
      Episodic accretion is one of the competing models to explain the observed luminosity spread in young stellar clusters. These short-lived high accretion events could also have a strong impact on planet formation. Observations ...