Dr. Esteban D. Araya
Please contact E. D. Araya for a complete and updated version.
ACADEMIC BACKGROUND
2008 New Mexico Tech, Ph.D. Physics (Astrophysics)
2004 University of Puerto Rico, M.S. Physics
2000 Universidad de Costa Rica, B.A. Physics
PUBLICATIONS IN PEER REVIEWED JOURNALS (up to 2015, click here for updated list including non peer-reviewed publications)
35. E. D. Araya, L. Olmi, J. Morales Ortiz, J. E. Brown, P. Hofner, S. Kurtz, H. Linz, M. J. Creech-Eakman, "Formaldehyde Masers: Exclusive Tracers of High-mass Star Formation", 2015, ApJS, 221, 10
34. V. Rosero, P. Hofner, M. McCoy, S. Kurtz, K. M. Menten, F. Wyrowski, E. D. Araya, L. Loinard, C. Carrasco-Gonzalez, L. F. Rodriguez, R. Cesaroni, S. P. Ellingsen, "Weak and Compact Radio Emission in Early Massive Star Formation Regions: An Ionized Jet toward G11.11-0.12P1", 2014, ApJ, 796, 130
33. L. Olmi, E. D. Araya, P. Hofner, S. Molinari, J. Morales Ortiz, L. Moscadelli, & M. Pestalozzi, "Discovery of weak 6.7 GHz CH3OH masers in a sample of high-mass Hi-GAL sources", 2014, A&A, 566, 18
32. E. D. Araya, N. Dieter-Conklin, W. M. Goss, N. Andreev, "Study of Interstellar Molecular Clouds Using Formaldehyde Absorption toward Extragalactic Radio Sources", 2014, ApJ, 784, 129
31. V. Rosero, P. Hofner, S. Kurtz, J. Bieging, & E. D. Araya, "Methyl Cyanide Observations toward Massive Protostars", 2013, ApJS, 207, 12
30. C. Carrasco-Gonzalez, R. Galvan-Madrid, G. Anglada, M. Osorio, P. D'Alessio, P. Hofner, L. F. Rodriguez, H. Linz, E. D. Araya, "Resolving the Circumstellar Disk around the Massive Protostar Driving the HH 80-81 Jet", 2012, ApJ, 752, 29
29. A. A. Al-Marzouk, E. D. Araya, P. Hofner, S. Kurtz, H. Linz, & L. Olmi, "Discovery of 6.035 GHz Hydroxyl Maser Flares in IRAS 18566+0408", 2012, ApJ, 750, 170
28. C. Carrasco-Gonzalez, R. Galvan-Madrid, G. Anglada, M. Osorio, P. D'Alessio, P. Hofner, L. F. Rodriguez, H. Linz, E. D. Araya, "Resolving the Circumstellar Disk Around the Massive Protostar Driving the HH 80-81 Jet", 2012, ApJL, 752, 29.
27. P. Hofner, S. Kurtz, S. P. Ellingsen, M. K. Menten, F. Wyrowski, E. D. Araya, L. Loinard, L. F. Rodriguez, R. Cesaroni, "Expanded Very Large Array Continuum Observations toward Hot Molecular Core Candidates", 2011, ApJ, 739L, 17H.
26. L. Gomez, L. Luis, I. Hernandez-Curiel, S. Kurtz, P. Hofner, E. D. Araya, "A Catalog of CH3OH 70-61 A + Maser Sources in Massive Star-forming Regions. II. Masers in NGC 6334F, G8.67-0.36, and M17", 2010, ApJ, 191, 207G.
25. L. O. Sjouwerman, C. E. Murray, Y. M. Pihlstrom, V. L. Fish, E. D. Araya, Discovery of the First Methanol (CH3OH) Maser in the Andromeda Galaxy (M31)", 2010, ApJ, 724L, 158S.
24. E. D. Araya, P. Hofner, W. M. Goss, S. Kurtz, A. M. S. Richards, H. Linz, L. Olmi, M. Sewilo, "Quasi - periodic Formaldahyde Masers Flares in the Massive Protostellar Object IRAS 18566+0408", 2010, Apj, 717L, 133A.
23. L. Olmi, E. D. Araya, E. L. Chapin, A. Gibb, P. Hofner, P. G. Martin, & C. M. Poventud,
"High Angular Resolution Observations of Four Candidate BLAST High-mass Starless Cores",
2010, ApJ, 715, 1132.
22. R. Galvan-Madrid, G. Montes, E. A. Ramirez, S. Kurtz, E. D. Araya, & P. Hofner, "The Rare 23.1 GHz
Methanol Masers in NGC 7538 IRS 1", ApJ, 2010, 713, 423.
21. E. D. Araya, C. Rodriguez, Y. Pihlstrom, G. B. Taylor, S. Tremblay, & R. C. Vermeulen, “VLBA
Observations of HI in the Archetype Compact Symmetric Object B2352+495”, 2009, AJ, 139, 17.
20. E. D. Araya, S. Kurtz, P. Hofner, & H. Linz, “Radio Continuum and Methanol Observations of
DR21(OH)”, 2009, ApJ, 698, 1321.
19. E. D. Araya, P. Hofner, W. M. Goss, H. Linz, S. Kurtz, & L. Olmi, “A Search for H2CO 6 cm Emission
toward Young Stellar Objects III. VLA Observations”, 2008, ApJS, 178, 330.
18. E. Araya, P. Hofner, & S. Kurtz, “Thermal Methanol Observations of the Outflow from the G31.41+0.31
Hot Molecular Core”, 2008, ApJ, 675, 420.
17. E. Jordan, E. Araya, P. Hofner, M. Mateen, & S. Kurtz, “Haystack Observations of CS and CH3OH
Toward Star Forming Regions”, 2008, RevMexA&A, 44, 45.
16. E. Araya, et al., “An H2CO 6 cm Maser Pinpointing a Possible Circumstellar Torus in IRAS 18566+0408”,
2007, ApJ, 669, 1050.
15. E. Araya, P. Hofner, W. M. Goss, H. Linz, S. Kurtz, & L. Olmi, “A Search for Formaldehyde 6 cm
Emission toward Young Stellar Objects II. H2CO and H110a Observations”, 2007, ApJS, 170, 152.
14. P. Hofner, R. Cesaroni, L. Olmi, L. F. Rodriguez, J. Marti, & E. Araya, “Sub-arcsecond Resolution
Radio Continuum Observations of IRAS 20126+4104”, 2007, A&A, 465, 197.
13. E. Araya, P. Hofner, M. Sewilo, H. Linz, S. Kurtz, L. Olmi, C. Watson, & E. Churchwell, “First
Detection of an H2CO 6 cm Maser Flare: A Burst in IRAS 18566+0408”, 2007, ApJL, 654, 95.
12. M. Mateen, P. Hofner, P., & E. Araya, “A Survey of the SO JK = 10 − 01 Transition toward Massive
Star-Forming Regions”, 2006, ApJS, 167, 239.
11. E. Araya, P. Hofner, L. Olmi, S. Kurtz, & H. Linz, “Arecibo Observations of Formaldehyde in L1551”,
2006, AJ, 132, 1851.
10. E. Araya, P. Hofner, W. M. Goss, S. Kurtz, H. Linz, & L. Olmi, “A New Galactic 6 cm Formaldehyde
Maser”, 2006, ApJL, 643, 33.
9. E. Araya, P. Hofner, S. Kurtz, L. Bronfman, & S. DeDeo, “CH3CN Observations toward Southern
Massive Star-Forming Regions”, 2005, ApJS, 157, 279.
8. E. Araya, P. Hofner, S. Kurtz, H. Linz, M. Sewilo, E. Churchwell, C. Watson & L. Olmi, “Discovery of
an H2CO 6 cm Maser toward IRAS 18566+0408”, 2005, ApJ, 618, 339.
7. E. Araya, P. Hofner, H. Linz, M. Sewilo, E. Churchwell, C. Watson, L. Olmi & S. Kurtz, “A Search for
H2CO 6 cm Emission toward Young Massive Stellar Objects”, 2004, ApJS, 154, 579.
6. M. Sewilo, C. Watson, E. Araya, E. Churchwell, P. Hofner & S. Kurtz, “Resolution of Distance
Ambiguities of Inner Galaxy Massive Star Formation Regions II”, 2004, ApJS, 154, 553.
5. E. Araya, P. Hofner & W. Baan, “Studies of Extragalactic Formaldehyde & Radio Recombination
Lines”, 2004, ApJS, 154, 553.
4. E. Araya, P. Hofner, P. Goldsmith, S. Slysh & S. Takano, “A C-Band Spectral Scan of IRC+10o216”,
2003, ApJ, 596, 556.
3. C. Watson, E. Araya, M. Sewilo, E. Churchwell, P. Hofner, & S. Kurtz, “Resolution of Distance
Ambiguities of Inner Galaxy Massive Star Formation Regions I”, 2003, ApJ, 587, 714.
2. E. Araya, P. Hofner, E. Churchwell & S. Kurtz, “Arecibo Observations of Formaldehyde and Radio
Recombination Lines toward Ultracompact H II Regions”, 2002, ApJS, 138, 63.
1. E. Araya, J. Bonatti & W. Fernandez, “Solar Activity and Climate in Central America”, 2000, Geofisica
Internacional, 39, 97.
INVITED REVIEWS
E. Araya, P. Hofner, & W. M. Goss, “A Review of H2CO Maser Emission in the Galaxy”, 2007, in Astro-
physical Masers and their Environments (IAU Symposium 242), ed. J. Chapman, & W. A. Baan, (Cambridge:
Cambridge Univ. Press), 110 (arXiv:0707.1841).
2008 New Mexico Tech, Ph.D. Physics (Astrophysics)
2004 University of Puerto Rico, M.S. Physics
2000 Universidad de Costa Rica, B.A. Physics
PUBLICATIONS IN PEER REVIEWED JOURNALS (up to 2015, click here for updated list including non peer-reviewed publications)
35. E. D. Araya, L. Olmi, J. Morales Ortiz, J. E. Brown, P. Hofner, S. Kurtz, H. Linz, M. J. Creech-Eakman, "Formaldehyde Masers: Exclusive Tracers of High-mass Star Formation", 2015, ApJS, 221, 10
34. V. Rosero, P. Hofner, M. McCoy, S. Kurtz, K. M. Menten, F. Wyrowski, E. D. Araya, L. Loinard, C. Carrasco-Gonzalez, L. F. Rodriguez, R. Cesaroni, S. P. Ellingsen, "Weak and Compact Radio Emission in Early Massive Star Formation Regions: An Ionized Jet toward G11.11-0.12P1", 2014, ApJ, 796, 130
33. L. Olmi, E. D. Araya, P. Hofner, S. Molinari, J. Morales Ortiz, L. Moscadelli, & M. Pestalozzi, "Discovery of weak 6.7 GHz CH3OH masers in a sample of high-mass Hi-GAL sources", 2014, A&A, 566, 18
32. E. D. Araya, N. Dieter-Conklin, W. M. Goss, N. Andreev, "Study of Interstellar Molecular Clouds Using Formaldehyde Absorption toward Extragalactic Radio Sources", 2014, ApJ, 784, 129
31. V. Rosero, P. Hofner, S. Kurtz, J. Bieging, & E. D. Araya, "Methyl Cyanide Observations toward Massive Protostars", 2013, ApJS, 207, 12
30. C. Carrasco-Gonzalez, R. Galvan-Madrid, G. Anglada, M. Osorio, P. D'Alessio, P. Hofner, L. F. Rodriguez, H. Linz, E. D. Araya, "Resolving the Circumstellar Disk around the Massive Protostar Driving the HH 80-81 Jet", 2012, ApJ, 752, 29
29. A. A. Al-Marzouk, E. D. Araya, P. Hofner, S. Kurtz, H. Linz, & L. Olmi, "Discovery of 6.035 GHz Hydroxyl Maser Flares in IRAS 18566+0408", 2012, ApJ, 750, 170
28. C. Carrasco-Gonzalez, R. Galvan-Madrid, G. Anglada, M. Osorio, P. D'Alessio, P. Hofner, L. F. Rodriguez, H. Linz, E. D. Araya, "Resolving the Circumstellar Disk Around the Massive Protostar Driving the HH 80-81 Jet", 2012, ApJL, 752, 29.
27. P. Hofner, S. Kurtz, S. P. Ellingsen, M. K. Menten, F. Wyrowski, E. D. Araya, L. Loinard, L. F. Rodriguez, R. Cesaroni, "Expanded Very Large Array Continuum Observations toward Hot Molecular Core Candidates", 2011, ApJ, 739L, 17H.
26. L. Gomez, L. Luis, I. Hernandez-Curiel, S. Kurtz, P. Hofner, E. D. Araya, "A Catalog of CH3OH 70-61 A + Maser Sources in Massive Star-forming Regions. II. Masers in NGC 6334F, G8.67-0.36, and M17", 2010, ApJ, 191, 207G.
25. L. O. Sjouwerman, C. E. Murray, Y. M. Pihlstrom, V. L. Fish, E. D. Araya, Discovery of the First Methanol (CH3OH) Maser in the Andromeda Galaxy (M31)", 2010, ApJ, 724L, 158S.
24. E. D. Araya, P. Hofner, W. M. Goss, S. Kurtz, A. M. S. Richards, H. Linz, L. Olmi, M. Sewilo, "Quasi - periodic Formaldahyde Masers Flares in the Massive Protostellar Object IRAS 18566+0408", 2010, Apj, 717L, 133A.
23. L. Olmi, E. D. Araya, E. L. Chapin, A. Gibb, P. Hofner, P. G. Martin, & C. M. Poventud,
"High Angular Resolution Observations of Four Candidate BLAST High-mass Starless Cores",
2010, ApJ, 715, 1132.
22. R. Galvan-Madrid, G. Montes, E. A. Ramirez, S. Kurtz, E. D. Araya, & P. Hofner, "The Rare 23.1 GHz
Methanol Masers in NGC 7538 IRS 1", ApJ, 2010, 713, 423.
21. E. D. Araya, C. Rodriguez, Y. Pihlstrom, G. B. Taylor, S. Tremblay, & R. C. Vermeulen, “VLBA
Observations of HI in the Archetype Compact Symmetric Object B2352+495”, 2009, AJ, 139, 17.
20. E. D. Araya, S. Kurtz, P. Hofner, & H. Linz, “Radio Continuum and Methanol Observations of
DR21(OH)”, 2009, ApJ, 698, 1321.
19. E. D. Araya, P. Hofner, W. M. Goss, H. Linz, S. Kurtz, & L. Olmi, “A Search for H2CO 6 cm Emission
toward Young Stellar Objects III. VLA Observations”, 2008, ApJS, 178, 330.
18. E. Araya, P. Hofner, & S. Kurtz, “Thermal Methanol Observations of the Outflow from the G31.41+0.31
Hot Molecular Core”, 2008, ApJ, 675, 420.
17. E. Jordan, E. Araya, P. Hofner, M. Mateen, & S. Kurtz, “Haystack Observations of CS and CH3OH
Toward Star Forming Regions”, 2008, RevMexA&A, 44, 45.
16. E. Araya, et al., “An H2CO 6 cm Maser Pinpointing a Possible Circumstellar Torus in IRAS 18566+0408”,
2007, ApJ, 669, 1050.
15. E. Araya, P. Hofner, W. M. Goss, H. Linz, S. Kurtz, & L. Olmi, “A Search for Formaldehyde 6 cm
Emission toward Young Stellar Objects II. H2CO and H110a Observations”, 2007, ApJS, 170, 152.
14. P. Hofner, R. Cesaroni, L. Olmi, L. F. Rodriguez, J. Marti, & E. Araya, “Sub-arcsecond Resolution
Radio Continuum Observations of IRAS 20126+4104”, 2007, A&A, 465, 197.
13. E. Araya, P. Hofner, M. Sewilo, H. Linz, S. Kurtz, L. Olmi, C. Watson, & E. Churchwell, “First
Detection of an H2CO 6 cm Maser Flare: A Burst in IRAS 18566+0408”, 2007, ApJL, 654, 95.
12. M. Mateen, P. Hofner, P., & E. Araya, “A Survey of the SO JK = 10 − 01 Transition toward Massive
Star-Forming Regions”, 2006, ApJS, 167, 239.
11. E. Araya, P. Hofner, L. Olmi, S. Kurtz, & H. Linz, “Arecibo Observations of Formaldehyde in L1551”,
2006, AJ, 132, 1851.
10. E. Araya, P. Hofner, W. M. Goss, S. Kurtz, H. Linz, & L. Olmi, “A New Galactic 6 cm Formaldehyde
Maser”, 2006, ApJL, 643, 33.
9. E. Araya, P. Hofner, S. Kurtz, L. Bronfman, & S. DeDeo, “CH3CN Observations toward Southern
Massive Star-Forming Regions”, 2005, ApJS, 157, 279.
8. E. Araya, P. Hofner, S. Kurtz, H. Linz, M. Sewilo, E. Churchwell, C. Watson & L. Olmi, “Discovery of
an H2CO 6 cm Maser toward IRAS 18566+0408”, 2005, ApJ, 618, 339.
7. E. Araya, P. Hofner, H. Linz, M. Sewilo, E. Churchwell, C. Watson, L. Olmi & S. Kurtz, “A Search for
H2CO 6 cm Emission toward Young Massive Stellar Objects”, 2004, ApJS, 154, 579.
6. M. Sewilo, C. Watson, E. Araya, E. Churchwell, P. Hofner & S. Kurtz, “Resolution of Distance
Ambiguities of Inner Galaxy Massive Star Formation Regions II”, 2004, ApJS, 154, 553.
5. E. Araya, P. Hofner & W. Baan, “Studies of Extragalactic Formaldehyde & Radio Recombination
Lines”, 2004, ApJS, 154, 553.
4. E. Araya, P. Hofner, P. Goldsmith, S. Slysh & S. Takano, “A C-Band Spectral Scan of IRC+10o216”,
2003, ApJ, 596, 556.
3. C. Watson, E. Araya, M. Sewilo, E. Churchwell, P. Hofner, & S. Kurtz, “Resolution of Distance
Ambiguities of Inner Galaxy Massive Star Formation Regions I”, 2003, ApJ, 587, 714.
2. E. Araya, P. Hofner, E. Churchwell & S. Kurtz, “Arecibo Observations of Formaldehyde and Radio
Recombination Lines toward Ultracompact H II Regions”, 2002, ApJS, 138, 63.
1. E. Araya, J. Bonatti & W. Fernandez, “Solar Activity and Climate in Central America”, 2000, Geofisica
Internacional, 39, 97.
INVITED REVIEWS
E. Araya, P. Hofner, & W. M. Goss, “A Review of H2CO Maser Emission in the Galaxy”, 2007, in Astro-
physical Masers and their Environments (IAU Symposium 242), ed. J. Chapman, & W. A. Baan, (Cambridge:
Cambridge Univ. Press), 110 (arXiv:0707.1841).
RESEARCH EXPERIENCE
2009 - present
Professor, Western Illinois University, Macomb, IL, USA.
2008 - 2009
Non-Resident NRAO Jansky Fellow, Physics and Astronomy Department, University of New Mexico. Research on accretion/outflow systems from galactic star formation to Active Galactic Nuclei. Albuquerque, New Mexico, USA.
May 2008 - Aug 2008
Postdoctoral Fellow, Physics and Astronomy Department, University of New Mexico. Dr. G. Taylor and Dr. Y. Pihlstrom supervisors. Work mainly focused on data reduction of VLBA+Westerbork observations of HI in the radio galaxy 2352+495. Albuquerque, New Mexico, USA.
Sept 2006 - May 2008
NRAO Predoctoral Student: Study of H2CO Masers in the Galaxy. Dr. W. M. Goss adviser. Array Operations Center, NRAO, Socorro, New Mexico, USA.
Jan 2004 - Sept 2006
Research Assistant: Interferometric and Single Dish Studies of Star Forming Regions. Dr. P. Hofner adviser. Physics Department, New Mexico Tech, Socorro, New Mexico, USA.
Aug 2000 - May 2003
Research Assistant: Radio Interferometry and Single Dish Research on Galactic and Extragalactic Molecular Line and Continuum Radiation. Dr. P. Hofner adviser. Physics Department, Universidad de Puerto Rico, San Juan, Puerto Rico.
Jun - Jul 2000
Engineering Applications of Plasmas. Dr. I. Alexef adviser. University of Tennessee, Knoxville, Tennessee, USA.
Jan - Mar 2000
Use of Synchrotron Light to Study the Local Structure of Mn3+ in LaMnO3 around the Jahn-Teller Transition. Dr. H. Tolentino adviser. National Laboratory of Synchrotron Light (LNLS), Campinas, Brazil.
1998 - May 2000
Research Assistant: Numerical Studies of Gravitational Deflection Ellipses using Post-Newtonian Approximations, and Studies of Correlations between Solar Activity and Climate in Central America. Dr. J. Bonatti and Dr. W. Fernandez advisers. Center for Atmospheric and Planetary Research, Universidad de Costa Rica, San Jose, Costa Rica.
2009 - present
Professor, Western Illinois University, Macomb, IL, USA.
2008 - 2009
Non-Resident NRAO Jansky Fellow, Physics and Astronomy Department, University of New Mexico. Research on accretion/outflow systems from galactic star formation to Active Galactic Nuclei. Albuquerque, New Mexico, USA.
May 2008 - Aug 2008
Postdoctoral Fellow, Physics and Astronomy Department, University of New Mexico. Dr. G. Taylor and Dr. Y. Pihlstrom supervisors. Work mainly focused on data reduction of VLBA+Westerbork observations of HI in the radio galaxy 2352+495. Albuquerque, New Mexico, USA.
Sept 2006 - May 2008
NRAO Predoctoral Student: Study of H2CO Masers in the Galaxy. Dr. W. M. Goss adviser. Array Operations Center, NRAO, Socorro, New Mexico, USA.
Jan 2004 - Sept 2006
Research Assistant: Interferometric and Single Dish Studies of Star Forming Regions. Dr. P. Hofner adviser. Physics Department, New Mexico Tech, Socorro, New Mexico, USA.
Aug 2000 - May 2003
Research Assistant: Radio Interferometry and Single Dish Research on Galactic and Extragalactic Molecular Line and Continuum Radiation. Dr. P. Hofner adviser. Physics Department, Universidad de Puerto Rico, San Juan, Puerto Rico.
Jun - Jul 2000
Engineering Applications of Plasmas. Dr. I. Alexef adviser. University of Tennessee, Knoxville, Tennessee, USA.
Jan - Mar 2000
Use of Synchrotron Light to Study the Local Structure of Mn3+ in LaMnO3 around the Jahn-Teller Transition. Dr. H. Tolentino adviser. National Laboratory of Synchrotron Light (LNLS), Campinas, Brazil.
1998 - May 2000
Research Assistant: Numerical Studies of Gravitational Deflection Ellipses using Post-Newtonian Approximations, and Studies of Correlations between Solar Activity and Climate in Central America. Dr. J. Bonatti and Dr. W. Fernandez advisers. Center for Atmospheric and Planetary Research, Universidad de Costa Rica, San Jose, Costa Rica.