Science2021-12-02T15:45:55+00:00

SCIENCE

Some talks, presentations, articles and papers from the project

Refereed Publications

Froebrich D., Eislöffel J., Stecklum B., Herbert C., Hambsch F.-J., 2021, A survey for variable young stars with small telescopes: V – Analysis of TXOri, V505Ori, and V510Ori, the HST ULLYSES targets in the σ Ori cluster, MNRAS, in press (.pdf version)

Froebrich D., Derezea, E., Scholz A., et al., 2021, A survey for variable young stars with small telescopes: IV – Rotation Periods of YSOs in IC5070, MNRAS, 506, 5989 (.pdf version)

Froebrich, D., Scholz, A., Eislöffel, J., Stecklum, B., 2020, A survey for variable young stars with small telescopes: III – Warm spots on the active stars V1598Cyg, MNRAS, 497, 4602 (.pdf version)

Evitts, J.J.; Froebrich, D.; Scholz, A.; et al., 2020, A survey for variable young stars with small telescopes: II – Mapping a protoplanetary disk with stable structures at 0.15 AU, MNRAS, 493, 184 (.pdf version)

Hillenbrand, L.A., Contreras Pena, C., Morrell, S., et al., 2018, Gaia 17bpi: An FU Ori Type Outburst, ApJ, 869, 146 (.pdf version or Press Release)

Froebrich, D., Campbell-White, J., Scholz, A., et al., 2018, A survey for variable young stars with small telescopes: First results from HOYS-CAPS, MNRAS, 478, 5091 (.pdf version)

Sicilia-Aguilar, A., Oprandi, A., Froebrich, D., et al., 2017, The 2014-2017 outburst of the young star ASASSN-13db: A time-resolved picture of a very low-mass star between EXors and FUors, A&A, 2017, 607, 127 (.pdf version)

HOYS Publication Guidelines

All publications using any HOYS data should reference the project description paper (Froebrich et al. 2018, MNRAS, 478, 5091) and the data calibration paper (Evitts et al. 2020, MNRAS, 493, 184). If not all contributors of data are included in the author list, then the following should be added to the acknowledgements of every publication: “We would like to thank all contributors of observational data for their efforts towards the success of the HOYS project.”

We aim to disseminate the results of the science exploitation of the HOYS data with two kinds of publications. These are: i) larger, survey description type publications and ii) smaller, more specific publications.

We plan to write type i) publications about every one to two years. On these publications every participant who contributed data should be added as a co-author (if s/he wishes so), as well as everyone involved in the data analysis.

All other, type ii) publications using any HOYS data should include everyone as a co-author who made a significant contribution to the scientific analysis of the data and the preparation of the publication. Furthermore, any contributor who made a significant contribution to the dataset analysed in the publication should be added as co-author. In other words, anyone whose data cannot be removed without significantly degrading the quality of the analysis should be made a co-author.

Science Talks / Presentations / Articles

Hunting for Eruptive Young Stellar Objects, Article on the BAA website, advertising the expansions of the project to variable star observers in the UK.

Hunting for Eruptive Young Stellar Objects, Article in the BAA VSS Circular 174 (December 2017), advertising the expansions of the project to variable star observers in the UK.

Optical brightness and colours of V2492Cyg before, during and after the recent record peak in brightness, ATel10259, 12.04.2017

Froebrich, D., Scholz, A., Campbell-White, J., Crumpton, J., D’Arcy, E., Makin, S.V., Zegmott, T., Billington, S.J., Hibbert, R., Newport, R.J., Fisher, C.R. 2018, Variability in IC5070: two young stars with deep recurring eclipses, RNAAS, 2, 61 (.pdf version)

How to form stars and clusters and how to help us understand it, Stargazing Live Talk, 03.03.2017

The Physics of Star Formation, Public talk for Crayford Manor House Astronomical Society Dartford, 03.11.2016

Photometric Monitoring of nearby young Clusters as a Citizen Science Project, Poster at Star Formation 2016 Conference in Exeter, 24.08.2016

Photometric Monitoring of nearby young Clusters as a Citizen Science Project, Talk at Star Formation 2016 Conference in Exeter, 24.08.2016

The Physics of Star Formation, Talk at Hampshire Astronomical Group Meeting on 13.05.2016

The Physics of Star Formation, Talk at SEKAS Meeting on 09.01.2016

Hunting for Eruptive Young Stellar Objects, Article in the BAA VSS Circular 164 (June 2015), advertising the project to variable star observers in the UK.

Hunting for Eruptive Young Stellar Objects, Talk given at BAA Spring Meeting in Ashford on 25.04.2015, presenting some initial results of the search for high amplitute variables in NGC 2264.

LIGHT CURVES

Lightcurve of the week 169

8 April 2022|

This week we look again, at one of the Gaia alerts that occurred in one of our fields. This one, Gaia22bfj, was published on April 1st (no  joke) in the [...]

Lightcurve of the week 168

31 March 2022|

After many weeks of looking at light curves of young stars, we return to one of the other types of variable objects found in the HOYS data - Giant Stars. [...]

Lightcurve of the week 167

25 March 2022|

The observing season for our Winter targets is slowly coming to an end - the Summer targets are now rising shortly after midnight. Thus, we have a look at an [...]

Lightcurve of the week 166

18 March 2022|

This week we look back at the light curve of the Gaia alert object Gaia17bpi. The object increased its brightness by about 4 magnitudes over a period of about three [...]

Lightcurve of the week 165

9 March 2022|

This week we have a look back at an object we investigated before in light curve of the week 81. It is the eclipsing young star 2MASS J20175844+3756006 (MGAB-V3395) with [...]

Lightcurve of the week 164

2 March 2022|

We mentioned before that a large fraction of the Gaia photometric alerts for young stars are situated in the HOYS target fields. This week we look at another alert published [...]

Lightcurve of the week 163

24 February 2022|

This week we look at a new Gaia alert, issued a few hours ago. The object Gaia22ate is situated in the NGC1333 young cluster in Perseus. According to the Gaia [...]

Lightcurve of the week 161

9 February 2022|

This week we look at the known emission line star 2MASS J07085128-1043023. It is situated at the edge of a small cloud with an embedded cluster containing Gaia19fct. We added [...]

Lightcurve of the week 160

3 February 2022|

This week we look back at an old friend of the project - V350Cep. It has been 16 months since it last featured as light curve of the week. This [...]

Lightcurve of the week 159

26 January 2022|

This week we have a look at the young variable star LX Mon. It is situated in the NGC2264 cluster, also known as the Christmas Tree cluster. In the light [...]

Lightcurve of the week 158

21 January 2022|

This weeks feature light curve is another of the objects that have been flagged up as variables by the Gaia satellite. We are looking at the object Gaia22agc, which was [...]

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